Source: https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-4-genetic-factors

[Revision notes](https://senecalearning.com/en-gb/revision-notes.md) › [A Level](https://senecalearning.com/en-gb/revision-notes/a-level.md) › [Psychology](https://senecalearning.com/en-gb/revision-notes/a-level/psychology.md) › [AQA](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa.md) › Genetic Factors

# Genetic Factors

Psychology: AQA A Level, topic 15.1.4

## Twin and Adoption Studies

Heritability (genetic) factors have been linked to aggressive behaviour with many studies focussing on twin and adoption studies.

### Twin studies

![Twin studies](https://image-v2.cdn.app.senecalearning.com/2018-09/2b57d965-dc6b-4250-ab9c-322a4a421e18/baby-772439_1920.jpg)

- Twin studies allow researchers to examine the role of genetics.
  - Identical, or monozygotic (MZ) twins share 100% of their genes.
  - Non-identical, or dizygotic (DZ) twins share 50% of their genes. 
- If a closer genetic relationship is related to higher or lower levels of aggression then aggression can be said to have a heritable component.

### __Coccaro et al. (1997)__

![__Coccaro et al. (1997)__](https://image-v2.cdn.app.senecalearning.com/2018-09/0636035b-224a-4389-810a-4b1a8be9ac1f/twins-male-.jpg)

- __Coccaro et al. (1997)__  studied aggressive behaviour (defined as direct physical assault) in adult male MZ and DZ twins.
- They found concordance rates of: 
  - 50% for MZ twins.
  - 19% for DZ twins.

### **Christiansen (1977)**

![**Christiansen (1977)**](https://image-v2.cdn.app.senecalearning.com/2018-04/e462bc22-995a-4246-8d4d-98a4973d8ed0/shutterstock_747399802.jpg)

- **Christiansen (1977)** investigated the role of genetics in aggressive criminal behaviour.
- **Christiansen (1977)** conducted a case study of 3500 twins in Denmark and looked at both MZ and DZ twins
- For MZ male twins the concordance rate was 35% and MZ females 21%, compared to 13% DZ males and 8% DZ females.
- Since MZ share 100% DNA this gives some support to the genetic explanation of aggressive behaviour.

### Adoption studies

![Adoption studies](https://image-v2.cdn.app.senecalearning.com/2018-08/6d7fe50e-aa04-4d01-bd49-dfc166bdd9b3/parents-child-swing.jpg)

- Adoption studies have found that similarities in aggressive behaviour between an adopted child and their biological parents.
- This suggests that genetic influences are operating.
- Similarities with the adoptive parents suggest that environmental factors also influence aggressive behaviour.

### __Rhee and Waldman (2002)__

![__Rhee and Waldman (2002)__](https://image-v2.cdn.app.senecalearning.com/courseImages/biology/6.2.1%20-%20Variation%20and%20evolution/genetic+environment-min.jpg)

- __Rhee and Waldman (2002)__  carried out a meta analysis of adoption studies relating to direct aggression and antisocial behaviour.
- They discovered that genetic influences accounted for 41% of the variance in aggression.
- This is more or less in line with findings from twin studies.

## The MAOA Gene

The MAOA gene could be linked to aggressive behaviour.

### Catabolism

![Catabolism](https://image-v2.cdn.app.senecalearning.com/2018-08/05429860-93cd-427b-91c3-42fab773abe9/synapse-axon-dendrite.jpg)

- The MAOA, or monoamine oxidase A,  is an enzyme whose role is to mop up neurotransmitters in the brain after nerve impulses have been transmitted from one neuron to another.
- MAOA does this by breaking down the neurotransmitter (especially serotonin) into constituent chemicals to be recycled or excreted, a process known as catabolism.

### Serotonin and MAOA

![Serotonin and MAOA](https://image-v2.cdn.app.senecalearning.com/2018-08/5e5f3988-918b-4894-91cd-50b40d17de2c/eeg-scan-brain-sleep.jpg)

- The production of the enzyme is determined by the MAOA gene and dysfunction in the operation of this gene may lead to abnormal activity of the MAOA enzyme.
- This can affect serotonin levels in the brain.

### The warrior gene

![The warrior gene](https://image-v2.cdn.app.senecalearning.com/2018-08/5c2dc5d9-53ec-4707-9ace-d87520bc618d/chromosome-genetics-gene.jpg)

- One variant of the MAOA gene, often known as the warrior gene, leads to low MAOA activity in certain areas of the brain.
- This has been associated with various forms of aggressive behaviour.

### __Brunner et al. (1993)__

![__Brunner et al. (1993)__](https://image-v2.cdn.app.senecalearning.com/2018-09/7f0cb58f-9375-48f1-a52c-ef36d4814b24/drinks-bar-dutch-.jpg)

- __Brunner et al. (1993)__ studied 28 members of a large Dutch family who were repeatedly involved in impulsive aggressive violent criminal behaviours such as rape, attempted murder and physical assault.
- They found that these men had abnormally low levels of MAOA in their brains and the low activity version of the gene.

### **Cases et al (1995)**

![**Cases et al (1995)**](https://image-v2.cdn.app.senecalearning.com/2018-09/ae7f6d82-e6af-401e-a4b8-86e4a8fff0b9/mice-.jpg)

- **Cases et al (1995)** provided evidence via an animal experimentation to support **Brunner’s** findings about the MAOA gene and its link to aggression.
- Transgenic mice were studied who had a deletion in the gene that encodes MAOA.
- MAOA deficient males showed increased aggressive behaviour.
- This shows that MAOA deficiency is linked to aggression.

### __Stuart et al. (2014)__

![__Stuart et al. (2014)__](https://image-v2.cdn.app.senecalearning.com/2018-08/9b70fbd2-e272-4ea1-bd0b-5ae9776e4eb7/rage-punch.jpg)

- __Stuart et al. (2014)__ studied 97 men who (because they had been involved in inflicting intimate partner violence) (IPV), were part of the batterer treatment program. 
- Men with the low activity MAOA gene were found to be the most violent perpetrators of IPV, engaging in the highest levels of physical and psychological aggression and inflicting the worst injuries on their partners.

### __Merins et al. (2011)__

![__Merins et al. (2011)__](https://image-v2.cdn.app.senecalearning.com/2018-05/0c2f5eb7-d10e-4db0-8ce3-8ccc9c476a6a/shutterstock_422591692.jpg)

- If the low activity variance of the MAOA gene is associated with greater aggression, then the converse must also be true.
- __Merins et al. (2011)__ studied participants with low-activity and high-activity variance of the MAOA gene in a money distributing game where participants had to contribute money for the good of the group. 
- The researchers found that males with a high-activity variant were more cooperative and made fewer aggressive moves than the low-activity participants.

## Gene-Environment (GxE) Interaction

Genes interact with the environment to produce aggression; this is known as gene-environment (GxE) interaction.

### MAOA and trauma

![MAOA and trauma](https://image-v2.cdn.app.senecalearning.com/2018-08/e1e414b2-58b2-4012-81d1-9b282ee3faff/traumatic-experience-sad-depressed.jpg)

- Genes influence aggressive behaviour but they do not function in isolation. 
- Low MAOA gene activity only appears to be related to adult aggression when combined with a early traumatic life events.

### __Frazzetto et al. (2007)__

![__Frazzetto et al. (2007)__](https://image-v2.cdn.app.senecalearning.com/2018-09/c6aa2ef7-c6a7-4482-95db-0b145532a0cb/abuse-child-trauma-.jpg)

- __Frazzetto et al. (2007)__  found an association between higher levels of antisocial aggression and the low activity MAOA gene variant in adult males.
- However this was only the case in those who had experienced significant trauma, such as sexual or physical abuse, during the first 15 years of life.

### Conclusions

![Conclusions](https://image-v2.cdn.app.senecalearning.com/2018-03/10ea9caa-1103-40f5-9a72-d449e5ded5ac/shutterstock_180336584.jpg)

- Those who had not experienced such childhood trauma did not have critically high levels of aggression as adults, even if they possessed the low-activity MAOA variant. 
- This would suggest a gene environment interaction or diatheses-stress.

## Test yourself on Genetic Factors

- Who completed the meta-analysis on adoption studies in relation to aggression?
- What happens to the chemicals that monoamine oxidase A has broken down from neurotransmitters?
- Dysfunctional MAOA Gene
- How is a gene-environment interaction represented?
- What did Frazzetto et al. (2007) define as childhood trauma?

[Practise this topic for free](https://app.senecalearning.com/classroom/course/db5cd155-3f4b-40cb-a9f9-8c314f118345/section/35b65943-c20b-46c4-86b5-fa18005040b2/session)

- Previous topic: [15.1.3 Hormonal Mechanisms](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-3-hormonal-mechanisms.md)
- Next topic: [15.1.5 Genetic Factors 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-5-genetic-factors-2.md)

## Psychology: AQA A Level contents

### 1 Social Influence
- 1.1 Social Influence
  - [1.1.1 Conformity](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-1-conformity.md)
  - [1.1.2 Jenness' Conformity Study](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-2-jenness-conformity-study.md)
  - [1.1.3 Asch (1951)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-3-asch-1951.md)
  - [1.1.4 Sherif (1935)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-4-sherif-1935.md)
  - [1.1.5 Conformity to Social Roles](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-5-conformity-to-social-roles.md)
  - [1.1.6 End of Topic Test - Conformity](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-6-end-of-topic-test-conformity.md)
  - [1.1.7 Obedience](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-7-obedience.md)
  - [1.1.8 Analysing Milgram's Experiment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-8-analysing-milgrams-experiment.md)
  - [1.1.9 Agentic State & Legitimate Authority](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-9-agentic-state-and-legitimate-authority.md)
  - [1.1.10 Variables of Obedience](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-10-variables-of-obedience.md)
  - [1.1.11 Resistance to Social Influence](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-11-resistance-to-social-influence.md)
  - [1.1.12 Minority Influence & Social Change](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-12-minority-influence-and-social-change.md)
  - [1.1.13 Minority Influence & Social Impact Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-13-minority-influence-and-social-impact-theory.md)
  - [1.1.14 End of Topic Test - Social Influences](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-14-end-of-topic-test-social-influences.md)
  - [1.1.15 Exam-Style Question - Conformity](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-15-exam-style-question-conformity.md)
  - [1.1.16 Top Grade AO2/AO3 - Social Influence](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/1-1-16-top-grade-ao2ao3-social-influence.md)

### 2 Memory
- 2.1 Memory
  - [2.1.1 Multi-Store Model of Memory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-1-multi-store-model-of-memory.md)
  - [2.1.2 Short-Term vs Long-Term Memory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-2-short-term-vs-long-term-memory.md)
  - [2.1.3 Support for the Multi-Store Model of Memory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-3-support-for-the-multi-store-model-of-memory.md)
  - [2.1.4 Duration Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-4-duration-studies.md)
  - [2.1.5 Capacity Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-5-capacity-studies.md)
  - [2.1.6 Coding Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-6-coding-studies.md)
  - [2.1.7 The Working Memory Model](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-7-the-working-memory-model.md)
  - [2.1.8 The Working Memory Model 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-8-the-working-memory-model-2.md)
  - [2.1.9 Support for the Working Memory Model](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-9-support-for-the-working-memory-model.md)
  - [2.1.10 Explanations for Forgetting](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-10-explanations-for-forgetting.md)
  - [2.1.11 Studies on Interference](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-11-studies-on-interference.md)
  - [2.1.12 Cue-Dependent Forgetting](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-12-cue-dependent-forgetting.md)
  - [2.1.13 Eyewitness Testimony - Loftus & Palmer](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-13-eyewitness-testimony-loftus-and-palmer.md)
  - [2.1.14 Eyewitness Testimony - Loftus](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-14-eyewitness-testimony-loftus.md)
  - [2.1.15 Eyewitness Testimony - Post-Event Discussion](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-15-eyewitness-testimony-post-event-discussion.md)
  - [2.1.16 Eyewitness Testimony - Age & Anxiety](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-16-eyewitness-testimony-age-and-anxiety.md)
  - [2.1.17 Cognitive Interview](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-17-cognitive-interview.md)
  - [2.1.18 Cognitive Interview - Geiselman & Fisher](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-18-cognitive-interview-geiselman-and-fisher.md)
  - [2.1.19 End of Topic Test - Memory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-19-end-of-topic-test-memory.md)
  - [2.1.20 Exam-Style Question - Memory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/2-1-20-exam-style-question-memory.md)

### 3 Attachment
- 3.1 Attachment
  - [3.1.1 The Concept of Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-1-the-concept-of-attachment.md)
  - [3.1.2 Animal Studies of Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-2-animal-studies-of-attachment.md)
  - [3.1.3 Explanations of Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-3-explanations-of-attachment.md)
  - [3.1.4 Attachment Types - Strange Situation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-4-attachment-types-strange-situation.md)
  - [3.1.5 Cultural Differences in Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-5-cultural-differences-in-attachment.md)
  - [3.1.6 Disruption of Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-6-disruption-of-attachment.md)
  - [3.1.7 Disruption of Attachment - Privation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-7-disruption-of-attachment-privation.md)
  - [3.1.8 Overcoming the Effects of Disruption](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-8-overcoming-the-effects-of-disruption.md)
  - [3.1.9 The Effects of Institutionalisation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-9-the-effects-of-institutionalisation.md)
  - [3.1.10 Early Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-10-early-attachment.md)
  - [3.1.11 Critical Period of Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-11-critical-period-of-attachment.md)
  - [3.1.12 End of Topic Test - Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-12-end-of-topic-test-attachment.md)
  - [3.1.13 Exam-Style Question - Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-13-exam-style-question-attachment.md)
  - [3.1.14 Top Grade AO2/AO3 - Attachment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/3-1-14-top-grade-ao2ao3-attachment.md)

### 4 Clinical Psychology & Mental Health
- 4.1 Clinical Psychology & Mental Health
  - [4.1.1 Deviation from Social Norms](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-1-deviation-from-social-norms.md)
  - [4.1.2 Deviation from Social Norms 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-2-deviation-from-social-norms-2.md)
  - [4.1.3 Phobias, Depression & OCD](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-3-phobias-depression-and-ocd.md)
  - [4.1.4 Phobias: Behavioural Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-4-phobias-behavioural-approach.md)
  - [4.1.5 Evaluation of Behavioural Explanations of Phobias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-5-evaluation-of-behavioural-explanations-of-phobias.md)
  - [4.1.6 Depression: Cognitive Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-6-depression-cognitive-approach.md)
  - [4.1.7 OCD: Biological Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-7-ocd-biological-approach.md)
  - [4.1.8 Evidence for the Biological Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-8-evidence-for-the-biological-approach.md)
  - [4.1.9 End of Topic Test - Psychopathy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-9-end-of-topic-test-psychopathy.md)
  - [4.1.10 Exam-Style Question - Phobias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-10-exam-style-question-phobias.md)
  - [4.1.11 Top Grade AO2/AO3 - Psychopathology](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-11-top-grade-ao2ao3-psychopathology.md)
  - [4.1.12 Diagnostic Misconceptions - Phobia vs Fear](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-12-diagnostic-misconceptions-phobia-vs-fear.md)
  - [4.1.13 Diagnostic Misconceptions - Depression & Self-Harm](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-13-diagnostic-misconceptions-depression-and-self-harm.md)
  - [4.1.14 Diagnostic Misconceptions - Desensitisation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/4-1-14-diagnostic-misconceptions-desensitisation.md)

### 5 Approaches in Psychology
- 5.1 Approaches in Psychology
  - [5.1.1 The Behaviourist Approach - Classical Conditioning](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-1-the-behaviourist-approach-classical-conditioning.md)
  - [5.1.2 Pavlov's Experiment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-2-pavlovs-experiment.md)
  - [5.1.3 Little Albert Study](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-3-little-albert-study.md)
  - [5.1.4 The Behaviourist Approach - Operant Conditioning](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-4-the-behaviourist-approach-operant-conditioning.md)
  - [5.1.5 Social Learning Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-5-social-learning-theory.md)
  - [5.1.6 The Cognitive Approach 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-6-the-cognitive-approach-1.md)
  - [5.1.7 The Cognitive Approach 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-7-the-cognitive-approach-2.md)
  - [5.1.8 The Biological Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-8-the-biological-approach.md)
  - [5.1.9 The Biological Approach 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-9-the-biological-approach-2.md)
  - [5.1.10 Gottesman (1991) - Twin Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-10-gottesman-1991-twin-studies.md)
  - [5.1.11 Brain Scanning](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-11-brain-scanning.md)
  - [5.1.12 Structure of Personality & Little Hans](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-12-structure-of-personality-and-little-hans.md)
  - [5.1.13 The Psychodynamic Approach (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-13-the-psychodynamic-approach-a2-only.md)
  - [5.1.14 Humanistic Psychology (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-14-humanistic-psychology-a2-only.md)
  - [5.1.15 Aronoff (1957) (A2 Only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-15-aronoff-1957-a2-only.md)
  - [5.1.16 End of Topic Test - Approaches](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-1-16-end-of-topic-test-approaches.md)
- 5.2 Comparison of Approaches (A2 only)
  - [5.2.1 Psychodynamic Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-2-1-psychodynamic-approach.md)
  - [5.2.2 Cognitive Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-2-2-cognitive-approach.md)
  - [5.2.3 Biological Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-2-3-biological-approach.md)
  - [5.2.4 Behavioural Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-2-4-behavioural-approach.md)
  - [5.2.5 End of Topic Test - Comparison of Approaches](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/5-2-5-end-of-topic-test-comparison-of-approaches.md)

### 6 Biopsychology
- 6.1 Biopsychology
  - [6.1.1 Nervous System Divisions](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-1-nervous-system-divisions.md)
  - [6.1.2 Neuron Structure & Function](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-2-neuron-structure-and-function.md)
  - [6.1.3 Neurotransmitters](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-3-neurotransmitters.md)
  - [6.1.4 Endocrine System Function](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-4-endocrine-system-function.md)
  - [6.1.5 Fight or Flight Response](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-5-fight-or-flight-response.md)
  - [6.1.6 The Brain (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-6-the-brain-a2-only.md)
  - [6.1.7 Localisation of Brain Function (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-7-localisation-of-brain-function-a2-only.md)
  - [6.1.8 Studying the Brain (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-8-studying-the-brain-a2-only.md)
  - [6.1.9 CIMT (A2 Only) & Postmortem](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-9-cimt-a2-only-and-postmortem.md)
  - [6.1.10 Top Grade AO2/AO3 - Biopsychology](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-10-top-grade-ao2ao3-biopsychology.md)
  - [6.1.11 Diagnostic Misconceptions - Plasticity & Recovery](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-11-diagnostic-misconceptions-plasticity-and-recovery.md)
  - [6.1.12 Diagnostic Misconceptions - Endogenous Pacemakers](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-12-diagnostic-misconceptions-endogenous-pacemakers.md)
  - [6.1.13 End of Topic Test - Biopsychology](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/6-1-13-end-of-topic-test-biopsychology.md)

### 7 Research Methods
- 7.1 Research Methods
  - [7.1.1 Experimental Method](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-1-experimental-method.md)
  - [7.1.2 Observational Techniques](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-2-observational-techniques.md)
  - [7.1.3 Covert, Overt & Controlled Observation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-3-covert-overt-and-controlled-observation.md)
  - [7.1.4 Self-Report Techniques](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-4-self-report-techniques.md)
  - [7.1.5 Correlations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-5-correlations.md)
  - [7.1.6 Exam-Style Question - Research Methods](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-6-exam-style-question-research-methods.md)
  - [7.1.7 Diagnostic Misconceptions - Sign Test](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-7-diagnostic-misconceptions-sign-test.md)
  - [7.1.8 Diagnostic Misconceptions - Content & Thematic](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-8-diagnostic-misconceptions-content-and-thematic.md)
  - [7.1.9 Diagnostic Misconceptions - Valid vs Reliable](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-9-diagnostic-misconceptions-valid-vs-reliable.md)
  - [7.1.10 Diagnostic Misconceptions - Confounding Variable](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-10-diagnostic-misconceptions-confounding-variable.md)
  - [7.1.11 End of Topic Test - Research Methods](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-1-11-end-of-topic-test-research-methods.md)
- 7.2 Scientific Processes
  - [7.2.1 Aims, Hypotheses & Sampling](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-1-aims-hypotheses-and-sampling.md)
  - [7.2.2 Pilot Studies & Design](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-2-pilot-studies-and-design.md)
  - [7.2.3 Questionnaires](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-3-questionnaires.md)
  - [7.2.4 Variables & Control](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-4-variables-and-control.md)
  - [7.2.5 Demand Characteristics & Investigator Effects](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-5-demand-characteristics-and-investigator-effects.md)
  - [7.2.6 Ethics](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-6-ethics.md)
  - [7.2.7 Limitations of Ethical Guidelines](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-7-limitations-of-ethical-guidelines.md)
  - [7.2.8 Consent & Protection from Harm Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-8-consent-and-protection-from-harm-studies.md)
  - [7.2.9 Peer Review & The Economy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-9-peer-review-and-the-economy.md)
  - [7.2.10 Validity (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-10-validity-a2-only.md)
  - [7.2.11 Reliability (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-11-reliability-a2-only.md)
  - [7.2.12 Features of Science (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-12-features-of-science-a2-only.md)
  - [7.2.13 Paradigms & Falsifiability (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-13-paradigms-and-falsifiability-a2-only.md)
  - [7.2.14 Scientific Report (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-14-scientific-report-a2-only.md)
  - [7.2.15 Scientific Report 2 (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-15-scientific-report-2-a2-only.md)
  - [7.2.16 End of Topic Test - Scientific](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-2-16-end-of-topic-test-scientific.md)
- 7.3 Data Handling & Analysis
  - [7.3.1 Types of Data](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-1-types-of-data.md)
  - [7.3.2 Descriptive Statistics](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-2-descriptive-statistics.md)
  - [7.3.3 Correlation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-3-correlation.md)
  - [7.3.4 Evaluation of Descriptive Statistics](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-4-evaluation-of-descriptive-statistics.md)
  - [7.3.5 Presentation & Display of Data](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-5-presentation-and-display-of-data.md)
  - [7.3.6 Levels of Measurement (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-6-levels-of-measurement-a2-only.md)
  - [7.3.7 Coding in Content Analysis (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-7-coding-in-content-analysis-a2-only.md)
  - [7.3.8 Case Studies (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-8-case-studies-a2-only.md)
  - [7.3.9 End of Topic Test - Data Handling](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-3-9-end-of-topic-test-data-handling.md)
- 7.4 Inferential Testing
  - [7.4.1 Introduction to Inferential Testing](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-4-1-introduction-to-inferential-testing.md)
  - [7.4.2 Sign Test](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-4-2-sign-test.md)
  - [7.4.3 Piaget Conservation Experiment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-4-3-piaget-conservation-experiment.md)
  - [7.4.4 Non-Parametric Tests](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/7-4-4-non-parametric-tests.md)

### 8 Issues & Debates in Psychology (A2 only)
- 8.1 Issues & Debates in Psychology (A2 only)
  - [8.1.1 Culture Bias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-1-culture-bias.md)
  - [8.1.2 Sub-Culture Bias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-2-sub-culture-bias.md)
  - [8.1.3 Gender Bias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-3-gender-bias.md)
  - [8.1.4 Ethnocentrism](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-4-ethnocentrism.md)
  - [8.1.5 Cross Cultural Research](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-5-cross-cultural-research.md)
  - [8.1.6 Free Will & Determinism](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-6-free-will-and-determinism.md)
  - [8.1.7 Comparison of Free Will & Determinism](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-7-comparison-of-free-will-and-determinism.md)
  - [8.1.8 Reductionism & Holism](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-8-reductionism-and-holism.md)
  - [8.1.9 Reductionist & Holistic Approaches](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-9-reductionist-and-holistic-approaches.md)
  - [8.1.10 Nature-Nurture Debate](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-10-nature-nurture-debate.md)
  - [8.1.11 Interactionist Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-11-interactionist-approach.md)
  - [8.1.12 Nature-Nurture Methods](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-12-nature-nurture-methods.md)
  - [8.1.13 Nature-Nurture Approaches](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-13-nature-nurture-approaches.md)
  - [8.1.14 Idiographic & Nomothetic Approaches](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-14-idiographic-and-nomothetic-approaches.md)
  - [8.1.15 Socially Sensitive Research](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-15-socially-sensitive-research.md)
  - [8.1.16 End of Topic Test - Issues and Debates](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/8-1-16-end-of-topic-test-issues-and-debates.md)

### 9 Option 1: Relationships (A2 only)
- 9.1 Relationships: Sexual Relationships (A2 only)
  - [9.1.1 Factors Affecting Attraction: Self-Disclosure](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-1-factors-affecting-attraction-self-disclosure.md)
  - [9.1.2 Evaluation of Self-Disclosure Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-2-evaluation-of-self-disclosure-theory.md)
  - [9.1.3 Factors Affecting Attraction: Physical Attributes](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-3-factors-affecting-attraction-physical-attributes.md)
  - [9.1.4 Matching Hypothesis Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-4-matching-hypothesis-studies.md)
  - [9.1.5 Factors Affecting Physical Attraction](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-5-factors-affecting-physical-attraction.md)
  - [9.1.6 Factors Affecting Attraction: Filter Theory 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-6-factors-affecting-attraction-filter-theory-1.md)
  - [9.1.7 Factors Affecting Attraction: Filter Theory 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-7-factors-affecting-attraction-filter-theory-2.md)
  - [9.1.8 Evaluation of Filter Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-8-evaluation-of-filter-theory.md)
  - [9.1.9 End of Topic Test - Relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-1-9-end-of-topic-test-relationships.md)
- 9.2 Relationships: Romantic Relationships (A2 only)
  - [9.2.1 Social Exchange Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-1-social-exchange-theory.md)
  - [9.2.2 Evaluation of Social Exchange Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-2-evaluation-of-social-exchange-theory.md)
  - [9.2.3 Equity Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-3-equity-theory.md)
  - [9.2.4 Evaluation of Equity Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-4-evaluation-of-equity-theory.md)
  - [9.2.5 Rusbult’s Investment Model](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-5-rusbults-investment-model.md)
  - [9.2.6 Evaluation of Rusbult's Investment Model](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-6-evaluation-of-rusbults-investment-model.md)
  - [9.2.7 Relationship Breakdown](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-7-relationship-breakdown.md)
  - [9.2.8 Studies on Relationship Breakdown](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-8-studies-on-relationship-breakdown.md)
  - [9.2.9 Evaluation of Relationship Breakdown](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-9-evaluation-of-relationship-breakdown.md)
  - [9.2.10 End of Topic Test - Romantic relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-2-10-end-of-topic-test-romantic-relationships.md)
- 9.3 Relationships: Online (A2 only)
  - [9.3.1 Online Relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-1-online-relationships.md)
  - [9.3.2 Evaluation of Reduced Cues & Hyperpersonal](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-2-evaluation-of-reduced-cues-and-hyperpersonal.md)
  - [9.3.3 Self Disclosure in Online Relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-3-self-disclosure-in-online-relationships.md)
  - [9.3.4 Parasocial Relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-4-parasocial-relationships.md)
  - [9.3.5 Attachment Theory & Parasocial Relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-5-attachment-theory-and-parasocial-relationships.md)
  - [9.3.6 Evaluation of Parasocial Relationship Theories](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-6-evaluation-of-parasocial-relationship-theories.md)
  - [9.3.7 End of Topic Test - Online Relationships](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/9-3-7-end-of-topic-test-online-relationships.md)

### 10 Option 1: Gender (A2 only)
- 10.1 Gender (A2 only)
  - [10.1.1 Biological Sex](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-1-biological-sex.md)
  - [10.1.2 The Role of Hormones in Biological Sex](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-2-the-role-of-hormones-in-biological-sex.md)
  - [10.1.3 Biological Explanations of Gender Development](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-3-biological-explanations-of-gender-development.md)
  - [10.1.4 Gender Identities & BSRI](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-4-gender-identities-and-bsri.md)
  - [10.1.5 Kohlberg’s Theory of Gender Constancy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-5-kohlbergs-theory-of-gender-constancy.md)
  - [10.1.6 Evaluation of Kohlberg's Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-6-evaluation-of-kohlbergs-theory.md)
  - [10.1.7 Gender Schema Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-7-gender-schema-theory.md)
  - [10.1.8 Social Approach to Gender Development](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-8-social-approach-to-gender-development.md)
  - [10.1.9 Criticisms of Social Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-9-criticisms-of-social-theory.md)
  - [10.1.10 Media Influence on Gender Development](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-10-media-influence-on-gender-development.md)
  - [10.1.11 Gender Incongruence](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-11-gender-incongruence.md)
  - [10.1.12 End of Topic Test - Gender](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/10-1-12-end-of-topic-test-gender.md)

### 11 Option 1: Cognition & Development (A2 only)
- 11.1 Cognition & Development (A2 only)
  - [11.1.1 Piaget’s Theory of Cognitive Development 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-1-piagets-theory-of-cognitive-development-1.md)
  - [11.1.2 Piaget's Theory of Cognitive Development 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-2-piagets-theory-of-cognitive-development-2.md)
  - [11.1.3 Schema Accommodation Assimilation & Equilibration](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-3-schema-accommodation-assimilation-and-equilibration.md)
  - [11.1.4 Piaget & Inhelder’s Three Mountains Task (1956)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-4-piaget-and-inhelders-three-mountains-task-1956.md)
  - [11.1.5 Conservation & Class Inclusion](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-5-conservation-and-class-inclusion.md)
  - [11.1.6 Evaluation of Piaget](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-6-evaluation-of-piaget.md)
  - [11.1.7 Vygotsky](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-7-vygotsky.md)
  - [11.1.8 Evaluation of Vygotsky](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-8-evaluation-of-vygotsky.md)
  - [11.1.9 Baillargeon](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-9-baillargeon.md)
  - [11.1.10 Baillargeon's studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-10-baillargeons-studies.md)
  - [11.1.11 Evaluation of Baillargeon](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-11-evaluation-of-baillargeon.md)
  - [11.1.12 Sense of Self & Theory of Mind](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-12-sense-of-self-and-theory-of-mind.md)
  - [11.1.13 Baron-Cohen Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-13-baron-cohen-studies.md)
  - [11.1.14 Selman’s Five Levels of Perspective Taking](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-14-selmans-five-levels-of-perspective-taking.md)
  - [11.1.15 Biological Basis of Social Cognition](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-15-biological-basis-of-social-cognition.md)
  - [11.1.16 Evaluation of Biological Basis of Social Cognition](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-16-evaluation-of-biological-basis-of-social-cognition.md)
  - [11.1.17 Issues in Social Neuroscience](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-17-issues-in-social-neuroscience.md)
  - [11.1.18 Top Grade AO2/AO3  - Cognition & Development](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-18-top-grade-ao2ao3-cognition-and-development.md)
  - [11.1.19 End of Topic Test - Cognition & Development 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-19-end-of-topic-test-cognition-and-development-1.md)
  - [11.1.20 End of Topic Test - Cognition & Development 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-20-end-of-topic-test-cognition-and-development-2.md)
  - [11.1.21 End of Topic Test - Cognition 3](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/11-1-21-end-of-topic-test-cognition-3.md)

### 12 Option 2: Schizophrenia (A2 only)
- 12.1 Schizophrenia: Diagnosis (A2 only)
  - [12.1.1 Symptoms of Schizophrenia](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-1-1-symptoms-of-schizophrenia.md)
  - [12.1.2 Issues in Diagnosis](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-1-2-issues-in-diagnosis.md)
  - [12.1.3 Pinto (2017) & Copeland (1971)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-1-3-pinto-2017-and-copeland-1971.md)
  - [12.1.4 End of Topic Test - Schizophrenia](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-1-4-end-of-topic-test-schizophrenia.md)
- 12.2 Schizophrenia: Treatment (A2 only)
  - [12.2.1 Family-Based Psychological Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-1-family-based-psychological-explanations.md)
  - [12.2.2 Evaluation of Family-Based Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-2-evaluation-of-family-based-explanations.md)
  - [12.2.3 Cognitive Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-3-cognitive-explanations.md)
  - [12.2.4 Drug Therapies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-4-drug-therapies.md)
  - [12.2.5 Evaluation of Drug Therapies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-5-evaluation-of-drug-therapies.md)
  - [12.2.6 Biological Explanations for Schizophrenia](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-6-biological-explanations-for-schizophrenia.md)
  - [12.2.7 Dopamine Hypothesis](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-7-dopamine-hypothesis.md)
  - [12.2.8 Psychological Therapies 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-8-psychological-therapies-1.md)
  - [12.2.9 Psychological Therapies 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-9-psychological-therapies-2.md)
  - [12.2.10 Interactionist Approach - Diathesis-Stress Model](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-10-interactionist-approach-diathesis-stress-model.md)
  - [12.2.11 Interactionist Approach - Triggers & Treatment](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-11-interactionist-approach-triggers-and-treatment.md)
  - [12.2.12 Evaluation of the Interactionist Approach](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-12-evaluation-of-the-interactionist-approach.md)
  - [12.2.13 Evaluation of Psychological Therapies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-13-evaluation-of-psychological-therapies.md)
  - [12.2.14 Diagnostic Misconceptions - CBT & CBTp](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-14-diagnostic-misconceptions-cbt-and-cbtp.md)
  - [12.2.15 End of Topic Test - Treatments 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-15-end-of-topic-test-treatments-1.md)
  - [12.2.16 End of Topic Test - Treatments 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/12-2-16-end-of-topic-test-treatments-2.md)

### 13 Option 2: Eating Behaviour (A2 only)
- 13.1 Eating Behaviour (A2 only)
  - [13.1.1 Explanations for Food Preferences](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-1-explanations-for-food-preferences.md)
  - [13.1.2 Birch et al (1987) & Lowe et al (2004)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-2-birch-et-al-1987-and-lowe-et-al-2004.md)
  - [13.1.3 Control of Eating Behaviours](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-3-control-of-eating-behaviours.md)
  - [13.1.4 Control of Eating Behaviour: Leptin](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-4-control-of-eating-behaviour-leptin.md)
  - [13.1.5 Biological Explanations for Anorexia Nervosa](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-5-biological-explanations-for-anorexia-nervosa.md)
  - [13.1.6 Psychological Explanations: Family Systems Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-6-psychological-explanations-family-systems-theory.md)
  - [13.1.7 Psychological Explanations: Social Learning Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-7-psychological-explanations-social-learning-theory.md)
  - [13.1.8 Psychological Explanations: Cognitive Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-8-psychological-explanations-cognitive-theory.md)
  - [13.1.9 Biological Explanations for Obesity](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-9-biological-explanations-for-obesity.md)
  - [13.1.10 Biological Explanations: Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-10-biological-explanations-studies.md)
  - [13.1.11 Psychological Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-11-psychological-explanations.md)
  - [13.1.12 Psychological Explanations: Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-12-psychological-explanations-studies.md)
  - [13.1.13 End of Topic Test - Eating Behaviour](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/13-1-13-end-of-topic-test-eating-behaviour.md)

### 14 Option 2: Stress (A2 only)
- 14.1 Stress (A2 only)
  - [14.1.1 Physiology of Stress](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-1-physiology-of-stress.md)
  - [14.1.2 Role of Stress in Illness](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-2-role-of-stress-in-illness.md)
  - [14.1.3 Role of Stress in Illness: Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-3-role-of-stress-in-illness-studies.md)
  - [14.1.4 Social Readjustment Rating Scales](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-4-social-readjustment-rating-scales.md)
  - [14.1.5 Hassles & Uplifts Scales](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-5-hassles-and-uplifts-scales.md)
  - [14.1.6 Stress, Workload & Control](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-6-stress-workload-and-control.md)
  - [14.1.7 Stress Level Studies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-7-stress-level-studies.md)
  - [14.1.8 Physiological Measures of Stress](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-8-physiological-measures-of-stress.md)
  - [14.1.9 Individual Differences](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-9-individual-differences.md)
  - [14.1.10 Stress & Gender](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-10-stress-and-gender.md)
  - [14.1.11 Drug Therapy & Biofeedback for Stress](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-11-drug-therapy-and-biofeedback-for-stress.md)
  - [14.1.12 Stress Inoculation Therapy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-12-stress-inoculation-therapy.md)
  - [14.1.13 Social Support & Stress](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-13-social-support-and-stress.md)
  - [14.1.14 End of Topic Test - Stress 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-14-end-of-topic-test-stress-1.md)
  - [14.1.15 End of Topic Test - Stress 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/14-1-15-end-of-topic-test-stress-2.md)

### 15 Option 3: Aggression (A2 only)
- 15.1 Aggression: Physiological (A2 only)
  - [15.1.1 Neural Mechanisms](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-1-neural-mechanisms.md)
  - [15.1.2 Serotonin](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-2-serotonin.md)
  - [15.1.3 Hormonal Mechanisms](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-3-hormonal-mechanisms.md)
  - [15.1.4 Genetic Factors](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-4-genetic-factors.md)
  - [15.1.5 Genetic Factors 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-5-genetic-factors-2.md)
  - [15.1.6 Ethological Explanation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-6-ethological-explanation.md)
  - [15.1.7 Innate Releasing Mechanisms & Fixed Action Pattern](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-7-innate-releasing-mechanisms-and-fixed-action-pattern.md)
  - [15.1.8 Evolutionary Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-8-evolutionary-explanations.md)
  - [15.1.9 Buss et al (1992) - Sex Differences in Jealousy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-9-buss-et-al-1992-sex-differences-in-jealousy.md)
  - [15.1.10 Evaluation of Evolutionary Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-10-evaluation-of-evolutionary-explanations.md)
  - [15.1.11 End of Topic Test - Aggression: Physiological 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-11-end-of-topic-test-aggression-physiological-1.md)
  - [15.1.12 End of Topic Test - Aggression: Physiological 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-1-12-end-of-topic-test-aggression-physiological-2.md)
- 15.2 Aggression: Social Psychological (A2 only)
  - [15.2.1 Social Psychological Explanation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-1-social-psychological-explanation.md)
  - [15.2.2 Buss (1963) - Frustration/Aggression](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-2-buss-1963-frustrationaggression.md)
  - [15.2.3 Social Psychological Explanation 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-3-social-psychological-explanation-2.md)
  - [15.2.4 Social Learning Theory (SLT) 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-4-social-learning-theory-slt-1.md)
  - [15.2.5 Social Learning Theory (SLT) 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-5-social-learning-theory-slt-2.md)
  - [15.2.6 Limitations of Social Learning Theory (SLT)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-6-limitations-of-social-learning-theory-slt.md)
  - [15.2.7 Deindividuation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-7-deindividuation.md)
  - [15.2.8 Deindividuation 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-8-deindividuation-2.md)
  - [15.2.9 Deindividuation - Diener et al (1976)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-9-deindividuation-diener-et-al-1976.md)
  - [15.2.10 End of Topic Test - Aggression: Social Psychology](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-10-end-of-topic-test-aggression-social-psychology.md)
  - [15.2.11 Institutional Aggression: Prisons](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-11-institutional-aggression-prisons.md)
  - [15.2.12 Evaluation of Dispositional & Situational](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-12-evaluation-of-dispositional-and-situational.md)
  - [15.2.13 Influence of Computer Games](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-13-influence-of-computer-games.md)
  - [15.2.14 Influence of Television](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-14-influence-of-television.md)
  - [15.2.15 Evaluation of Studies on Media](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-15-evaluation-of-studies-on-media.md)
  - [15.2.16 Desensitisation & Disinhibition](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-16-desensitisation-and-disinhibition.md)
  - [15.2.17 Cognitive Priming](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-17-cognitive-priming.md)
  - [15.2.18 End of Topic Test - Aggression: Social Psychology](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/15-2-18-end-of-topic-test-aggression-social-psychology.md)

### 16 Option 3: Forensic Psychology (A2 only)
- 16.1 Forensic Psychology (A2 only)
  - [16.1.1 Defining Crime](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-1-defining-crime.md)
  - [16.1.2 Measuring Crime](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-2-measuring-crime.md)
  - [16.1.3 Offender Profiling](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-3-offender-profiling.md)
  - [16.1.4 Evaluation of Offender Profiling](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-4-evaluation-of-offender-profiling.md)
  - [16.1.5 John Duffy Case Study](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-5-john-duffy-case-study.md)
  - [16.1.6 Biological Explanations 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-6-biological-explanations-1.md)
  - [16.1.7 Biological Explanations 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-7-biological-explanations-2.md)
  - [16.1.8 Evaluation- Biological Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-8-evaluation-biological-explanations.md)
  - [16.1.9 Cognitive Explanations](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-9-cognitive-explanations.md)
  - [16.1.10 Moral Reasoning](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-10-moral-reasoning.md)
  - [16.1.11 Differential Association Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-11-differential-association-theory.md)
  - [16.1.12 Custodial Sentencing](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-12-custodial-sentencing.md)
  - [16.1.13 Effects of Prison](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-13-effects-of-prison.md)
  - [16.1.14 Evaluation of the Effects of Prison](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-14-evaluation-of-the-effects-of-prison.md)
  - [16.1.15 Behavioural Treatments & Therapies](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-15-behavioural-treatments-and-therapies.md)
  - [16.1.16 Effectiveness of Behavioural Treatments](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-16-effectiveness-of-behavioural-treatments.md)
  - [16.1.17 Restorative Justice](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-17-restorative-justice.md)
  - [16.1.18 End of Topic Test - Forensic 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-18-end-of-topic-test-forensic-1.md)
  - [16.1.19 End of Topic Test - Forensic 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/16-1-19-end-of-topic-test-forensic-2.md)

### 17 Option 3: Addiction (A2 only)
- 17.1 Addiction (A2 only)
  - [17.1.1 Definition](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-1-definition.md)
  - [17.1.2 Brain Neurochemistry Explanation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-2-brain-neurochemistry-explanation.md)
  - [17.1.3 Learning Theory Explanation](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-3-learning-theory-explanation.md)
  - [17.1.4 Evaluation of a Learning Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-4-evaluation-of-a-learning-theory.md)
  - [17.1.5 Cognitive Bias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-5-cognitive-bias.md)
  - [17.1.6 Griffiths on Cognitive Bias](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-6-griffiths-on-cognitive-bias.md)
  - [17.1.7 Evaluation of Cognitive Theory (A2 only)](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-7-evaluation-of-cognitive-theory-a2-only.md)
  - [17.1.8 Gambling Addiction & Learning Theory](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-8-gambling-addiction-and-learning-theory.md)
  - [17.1.9 Social Influences on Addiction 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-9-social-influences-on-addiction-1.md)
  - [17.1.10 Social Influences on Addiction 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-10-social-influences-on-addiction-2.md)
  - [17.1.11 Personal Influences  on Addiction](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-11-personal-influences-on-addiction.md)
  - [17.1.12 Genetic Explanations of Addiction](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-12-genetic-explanations-of-addiction.md)
  - [17.1.13 End of Topic Test - Addiction 1](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-13-end-of-topic-test-addiction-1.md)
  - [17.1.14 End of Topic Test - Addiction 2](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-1-14-end-of-topic-test-addiction-2.md)
- 17.2 Treating Addiction (A2 only)
  - [17.2.1 Drug Therapy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-2-1-drug-therapy.md)
  - [17.2.2 Behavioural Interventions](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-2-2-behavioural-interventions.md)
  - [17.2.3 Cognitive Behavioural Therapy](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-2-3-cognitive-behavioural-therapy.md)
  - [17.2.4 Six Stage Model of Behaviour Change](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-2-4-six-stage-model-of-behaviour-change.md)
  - [17.2.5 End of Topic Test - Treating](https://senecalearning.com/en-gb/revision-notes/a-level/psychology/aqa/17-2-5-end-of-topic-test-treating.md)