Related Experiment Video
Updated: Aug 26, 2026

Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
Published on: May 31, 2021
Effect of social desirability on adolescent girls' responses to an eating disorders prevention program
Linda Tilgner1, Eleanor H Wertheim, Susan J Paxton
1School of Psychological Science, La Trobe University, Victoria, Australia.
Objective:
The current study examined whether a social desirability response bias is a source of measurement error in prevention research.
Method:
Six hundred and seventy-seven female students in Grade 7 (n = 345) and Grade 8 (n = 332) were divided into either an intervention condition, in which participants watched a videotape promoting body acceptance and discouraging dieting and then discussed issues related to the video, or a control condition. Questionnaires were completed at baseline, postintervention, and at 1-month follow-up.
Results:
Social desirability scores were correlated at a low but significant level with baseline body dissatisfaction, drive for thinness, bulimic tendencies, intention to diet, and size discrepancy for intervention participants. Social desirability did not correlate significantly with change over time in the outcome measures.
Discussion:
The findings suggested that changes in girls' self-reports related to a prevention program were relatively free of social desirability response bias.
Related Concept Videos
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Surveys
Self-Evaluation: Self-Enhancement and Self-Verification
Binge Eating Disorders
Bulimia Nervosa
Self-Discrepancy and Its Effects

