Psychometric analysis of the Three-Factor Eating Questionnaire-R21: results from a large diverse sample of obese and non-obese participants
| Autor: | Andrew G. Bushmakin, Michael R. Lowe, Joseph C. Cappelleri, N K Leidy, Jon Karlsson, Robert A. Gerber, C C Sexton |
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| Rok vydání: | 2009 |
| Předmět: |
Male
Gerontology Canada Psychometrics Endocrinology Diabetes and Metabolism Medicine (miscellaneous) Overweight Body Mass Index Sex Factors Cronbach's alpha Reference Values Surveys and Questionnaires medicine Humans Obesity Nutrition and Dietetics Feeding Behavior Middle Aged Emotional eating medicine.disease United States Clinical trial Female medicine.symptom Factor Analysis Statistical Psychology Three-Factor Eating Questionnaire Body mass index |
| Zdroj: | International Journal of Obesity. 33:611-620 |
| ISSN: | 1476-5497 0307-0565 |
| DOI: | 10.1038/ijo.2009.74 |
| Popis: | The 21-item Three-Factor Eating Questionnaire (TFEQ-R21) is a scale that measures three domains of eating behavior: cognitive restraint (CR), uncontrolled eating (UE) and emotional eating (EE).To assess the factor structure and reliability of TFEQ-R21 (and if necessary, refine the structure) in diverse populations of obese and non-obese individuals.Data were obtained from obese adults in a United States/Canadian clinical trial (n=1741), and overweight, obese and normal weight adults in a US web-based survey (n=1275). Confirmatory factor analyses were employed to investigate the structure of TFEQ-R21 using baseline data from the clinical trial. The model was refined to obtain adequate fit and internal consistency. The refined model was then tested using the web-based data. Relationships between TFEQ domains and body mass index (BMI) were examined in both populations.Clinical data indicated that TFEQ-R21 needed refinement. Three items were removed from the CR domain, producing the revised version TFEQ-R18V2 (Comparative Fit Index (CFI)=0.91). Testing TFEQ-R18V2 in the web-based sample supported the revised structure (CFI=0.96; Cronbach's coefficient alpha of 0.78-0.94). Associations with BMI were small. In the clinical study, the CR domain showed a significant and negative association with BMI. On the basis of the web-based survey, it was shown that the relationship between BMI and CR is population-dependent (obese versus non-obese, healthy versus diabetics).In two independent datasets, the TFEQ-R18V2 showed robust factor structure and good reliability. It may provide a useful tool for characterizing UE, CR and EE. |
| Databáze: | OpenAIRE |
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