Validity of self-reported weight and height and predictors of weight bias in female college students.
Main objectives of the present study were to examine (i) the accuracy of using female college students' self-reports of weight and height in estimating rates of overweight and (ii) whether dietary restraint or Body Mass Index (BMI) was the most important predictor of weight underestimation. Participants were 209 female college students who were asked to report their weight and height on a questionnaire, while they were not told that their weight would be verified. Self-report screening was highly specific (98.9%) in identifying cases of normal weight, but only moderately sensitive (48.3%) in identifying cases of overweight. While dietary restraint was not an important predictor of weight underestimation, a higher BMI was an important predictor of weight underestimation. Our findings indicate that heavier female college students strongly underestimate their weight and that exclusive reliance on self-reports of weight and height can lead to erroneous prevalence estimates of overweight among female college students.
Larsen
Junilla K
JK
Institute for Gender Studies, Radboud University Nijmegen. PO Box 9104, 6500 HE Nijmegen, The Netherlands. j.larsen@pwo.ru.nl
Ouwens
Machteld
M
Engels
Rutger C M E
RC
Eisinga
Rob
R
van Strien
Tatjana
T
D000328:Adult; D015982:Bias; D001827:Body Height; D001828:Body Image; D015992:Body Mass Index; D001835:Body Weight; D005260:Female; D006801:Humans; D050177:Overweight / Q000523:psychology*; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012650:Self Disclosure; D012680:Sensitivity and Specificity; D014342:Truth Disclosure