Related Experiment Videos
Agreement between survey and interview measures of weight control practices in adolescents
S A French1, C B Peterson, M Story
1Division of Epidemiology, School of Public Health, University of Minnesota, Minneapolis 55454, USA.
Objective:
The present study examined agreement between survey and interview measures of weight control practices in a nonclinical sample of adolescents.
Method:
Surveys were administered in three school health classes. Clinical interviews were conducted in a student subsample (N = 43).
Results:
Survey-based prevalences for eating behaviors in the past month were: trying to lose weight, 44%; binge eating, 41%; vomiting, 4.7%; laxative use, 0%; and fasting, 14%. Interview-based prevalences were 30%, 11.6%, 0%, 0% and 0%, respectively. Sensitivity was high for all behaviors assessed. However, positive predictive values were low.
Discussion:
Surveys may be useful as preliminary screening tools for prevention programs, but may yield inflated estimates of unhealthy weight control practices in nonclinical adolescent populations. Research is needed to examine whether adolescents overreport weight control practices on surveys or whether they are less willing to disclose such practices in a private interview.