14.1.2

Birch et al (1987) & Lowe et al (2004)

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Birch et al (1987) - Impact of Exposure on Preferences

Birch et al (1987) looked at the imapct of two different types of exposure (looking and tasting) on young children’s preference for novel foods.

Procedure

Procedure

  • Laboratory experiment.
  • 51 2-5-year olds were exposed to seven novel foods, split into two groups ‘look’ or 'taste’.
    • They were exposed to 6 of the foods 5, 10 or 15 times; one remained novel.
  • The children were then asked to make a judgement: do the foods look good or do they taste good?
Results

Results

  • Significant correlations were found for the visual judgments of the looked at foods (r = 0·91), the visual judgments of the tasted (and looked at) foods (r = 0·97) and the taste judgments of the tasted foods (r = 0·94).
  • The only non-significant relationship was for the taste judgments of the looked at (but never tasted) foods (r = 0·24).
Conclusion

Conclusion

  • The results support the ‘learned safety’ concept of food choice.
  • As long as novel foods are not followed by negative side effects (e.g. vomiting or stomachache), the children learnt to like them.
Evaluation

Evaluation

  • Strengths
    • Controlled, reliable experiment.
    • Supports evolutionary explanations of food preferences.
  • Limitations
    • Correlations cannot show cause.

Lowe et al (2004) - Peer-Modelling/Rewards-Based

Lowe et al (2004) investigated the effect of peer modelling and rewards-based intervention on fruit and vegetable consumption.

Field experiment

Field experiment

  • Field experiment.
  • 749 children aged between 5-11, in two inner city London schools, were studied.
  • One group received the invention; the other group was a control.
  • In the experimental group, over a four-month period children received fruit at breaktime as a snack and fruit and vegetables at lunch time. They also watched a video featuring ‘The food dudes’ promoting the consumption of fruit and vegetables and received small rewards. Consumption of fruit and vegetables was recorded at break and lunchtime and by asking parents about their habits at home.
Results & conclusions

Results & conclusions

  • Results
    • Children in the experimental group ate more fruit and vegetables in school and at home.
  • Conclusion
    • This showed that peer-modelling and rewards-based interventions could encourage healthy eating in children.
Evaluation

Evaluation

  • Strengths
    • Practical applications.
  • Limitations
    • Demand characteristics and social desirability from parents.
    • Individual differences in children.
    • Cultural and social variations.
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1

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Memory

3

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4

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7

Biopsychology

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Research Methods

8.1

Research Methods

8.2

Scientific Processes

8.3

Data Handling & Analysis

8.4

Inferential Testing

9

Issues & Debates in Psychology (A2 only)

10

Option 1: Relationships (A2 only)

10.1

Relationships: Sexual Relationships (A2 only)

10.2

Relationships: Romantic Relationships (A2 only)

10.3

(2026 Exams) Relationships: Virtual (A2 only)

10.4

(2027 Exams) Relationships: Online (A2 only)

11

Option 1: Gender (A2 only)

12

Option 1: Cognition & Development (A2 only)

13

Option 2: Schizophrenia (A2 only)

14

Option 2: Eating Behaviour (A2 only)

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Option 2: Stress (A2 only)

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Option 3: Aggression (A2 only)

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Option 3: Forensic Psychology (A2 only)

18

Option 3: Addiction (A2 only)

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