Background and aims: To identify instruments used to evaluate the predictors of successful weight loss across weight loss trials.
Methods: We searched PubMed, PsychInfo, Cochrane Reviews and Scopus for weight loss trials reporting instruments published in the last 16 years.
Results: A total of 46 significant behavioral and psychological predictors were identified, of which 32 instruments were finally selected. SF-36 questionnaire and Obesity Related Problem Scale for psychosocial health, TREMORE scale for motivation, Social Support Scale for support, Weight Efficacy Lifestyle Scale for self-efficacy and Body Shape Questionnaire for body image had moderate quality. Barriers to healthy eating questionnaire scale and Dutch Eating Behavior also had moderate quality.
Conclusion: Use of uniform instruments with optimum quality can benefit clinical and community-based researchers to generate reliable datasets.
Keywords: Assessment; Diet; Physical activity; Psychometric properties; Questionnaire; Reliability; Validity.
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