A scenario-based dieting self-efficacy scale: the DIET-SE.
The article discusses a scenario-based dieting self-efficacy scale, the DIET-SE, developed from dieter's inventory of eating temptations (DIET). The DIET-SE consists of items that describe scenarios of eating temptations for a range of dieting situations, including high-caloric food temptations. Four studies assessed the psychometric properties of the 11-item DIET-SE. Exploratory factor analysis (N = 392) and confirmatory factors analysis (N = 124) revealed three internally consistent and reliable factors representing challenges to adhere to a diet (high-caloric food temptations [HCF], social and internal factors [SIF], negative emotional events [NEE]). Convergent validity is established with other measures of dieting self-efficacy, as well as measures of eating disinhibition, susceptibility to hunger, and weight loss competency. Criterion-related validity is provided through the assessment of goal adherence, and predictive validity is established for dieters' actual food intake (N = 68). The DIET-SE represents a short, reliable, and valid scenario-based measure of dieting self-efficacy.
Stich
Christine
C
McGill University, Department of Psychology, Montreal, Canada. christine.stich@mcgill.ca
Knäuper
Bärbel
B
Tint
Ami
A
D000293:Adolescent; D000328:Adult; D000368:Aged; D005247:Feeding Behavior / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011594:Psychometrics; D015203:Reproducibility of Results; D020377:Self Efficacy; D012647:Self-Assessment; D015431:Weight Loss; D055815:Young Adult