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  • Posted By: 3780_apple
  • Date Posted: 06/22/2011
  • Category: Psychology
  • Words: 1374
  • Pages: 6
  • Views: 968
  • Rank: 763

Abnormality

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Abnormality

SAQ 3

a) Outline 3 differences in the clinical characteristics of anorexia nervosa and bulimia nervosa. (2 marks + 2 marks + 2 marks)

 The age of onset for anorexia nervosa is typically between 13 and 18, whereas for bulimia nervosa it is typically in the 20’s.
 Bulimia nervosa sufferers are normally within the normal weight range, whereas anorexia sufferers usually have a body weight less than 85% of that expected.
 Bulimia nervosa is characterised by episodes of secret binge eating, whereas anorexia sufferers usually limit their food intake to 800 or less calories a day.

b) Describe the procedures and conclusions of one study of bulimia nervosa. (6 marks)

Jaeger et al studied 1751 medical and nursing studies, sampled across 12 nations. A self-report method was used to obtain data on body dissatisfaction, self-esteem, and dieting behaviour. A series of 10 body silhouettes were shown to the participants to assess body dissatisfaction. Body mass index measures were also taken.
The significant differences between the cultures support behaviourist explanations of bulimia. ‘Idealised’ body images portrayed in the media encouraged distorted views and consequently body dissatisfaction and dieting behaviour.

c) “ Anorexia nervosa cannot be satisfactorily accounted for by any single model of abnormality”
Describe and evaluate two different explanations for anorexia nervosa. (18 marks)

One explanation for anorexia nervosa is the biological approach. It is possible that physical illness may act as precipitating factor in eating disorders. Park el al studied four females suffering from anorexia nervosa, all of whom had had glandular fever or a similar disease shortly before the onset of the eating disorder, thus supporting the biological explanation. However, this study fails to establish a causal link between anorexia nervosa and glandular fever as they used a small sample, and most people who have glandular fever do not go on to ...

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