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Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management

OBJECTIVE: The Diet Satisfaction Questionnaire was developed to fill the need for a validated measure to evaluate satisfaction with weight‐management diets. This paper further develops the questionnaire, examining the factor structure of the original questionnaire, cross‐validating a revised version...

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Autores principales: James, B. L., Loken, E., Roe, L. S., Myrissa, K., Lawton, C. L., Dye, L., Rolls, B. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6298208/
https://www.ncbi.nlm.nih.gov/pubmed/30574344
http://dx.doi.org/10.1002/osp4.299
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author James, B. L.
Loken, E.
Roe, L. S.
Myrissa, K.
Lawton, C. L.
Dye, L.
Rolls, B. J.
author_facet James, B. L.
Loken, E.
Roe, L. S.
Myrissa, K.
Lawton, C. L.
Dye, L.
Rolls, B. J.
author_sort James, B. L.
collection PubMed
description OBJECTIVE: The Diet Satisfaction Questionnaire was developed to fill the need for a validated measure to evaluate satisfaction with weight‐management diets. This paper further develops the questionnaire, examining the factor structure of the original questionnaire, cross‐validating a revised version in a second sample and relating diet satisfaction to weight loss during a 1‐year trial. METHODS: The 45‐item Diet Satisfaction Questionnaire (DSat‐45) uses seven scales to assess characteristics that influence diet satisfaction: Healthy Lifestyle, Convenience, Cost, Family Dynamics, Preoccupation with Food, Negative Aspects, and Planning and Preparation. It was administered five times during a 1‐year weight‐loss trial (n = 186 women) and once as an online survey in a separate sample (n = 510 adults). Confirmatory factor analysis was used to assess and refine the DSat‐45 structure, and reliability and validity data were examined in both samples for the revised questionnaire, the DSat‐28. Associations were examined between both DSat questionnaires and weight loss in the trial. RESULTS: Internal consistency (reliability) was moderate for the DSat‐45. Confirmatory factor analysis showed improved fit for a five‐factor structure, resulting in the DSat‐28 that retained four of the original scales and a shortened fifth scale. This revised questionnaire was reliable in both samples. Weight loss across the year‐long trial was positively related to satisfaction with Healthy Lifestyle, Preoccupation with Food, and Planning and Preparation in both versions of the questionnaire. CONCLUSIONS: Measures of reliability and validity were improved in the more concise DSat‐28 compared to the DSat‐45. This shorter measure should be used in future work to evaluate satisfaction with weight‐management diets.
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spelling pubmed-62982082018-12-20 Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management James, B. L. Loken, E. Roe, L. S. Myrissa, K. Lawton, C. L. Dye, L. Rolls, B. J. Obes Sci Pract Original Articles OBJECTIVE: The Diet Satisfaction Questionnaire was developed to fill the need for a validated measure to evaluate satisfaction with weight‐management diets. This paper further develops the questionnaire, examining the factor structure of the original questionnaire, cross‐validating a revised version in a second sample and relating diet satisfaction to weight loss during a 1‐year trial. METHODS: The 45‐item Diet Satisfaction Questionnaire (DSat‐45) uses seven scales to assess characteristics that influence diet satisfaction: Healthy Lifestyle, Convenience, Cost, Family Dynamics, Preoccupation with Food, Negative Aspects, and Planning and Preparation. It was administered five times during a 1‐year weight‐loss trial (n = 186 women) and once as an online survey in a separate sample (n = 510 adults). Confirmatory factor analysis was used to assess and refine the DSat‐45 structure, and reliability and validity data were examined in both samples for the revised questionnaire, the DSat‐28. Associations were examined between both DSat questionnaires and weight loss in the trial. RESULTS: Internal consistency (reliability) was moderate for the DSat‐45. Confirmatory factor analysis showed improved fit for a five‐factor structure, resulting in the DSat‐28 that retained four of the original scales and a shortened fifth scale. This revised questionnaire was reliable in both samples. Weight loss across the year‐long trial was positively related to satisfaction with Healthy Lifestyle, Preoccupation with Food, and Planning and Preparation in both versions of the questionnaire. CONCLUSIONS: Measures of reliability and validity were improved in the more concise DSat‐28 compared to the DSat‐45. This shorter measure should be used in future work to evaluate satisfaction with weight‐management diets. John Wiley and Sons Inc. 2018-10-10 /pmc/articles/PMC6298208/ /pubmed/30574344 http://dx.doi.org/10.1002/osp4.299 Text en © 2018 The Authors. Obesity Science & Practice published by John Wiley & Sons Ltd, World Obesity and The Obesity Society. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
James, B. L.
Loken, E.
Roe, L. S.
Myrissa, K.
Lawton, C. L.
Dye, L.
Rolls, B. J.
Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management
title Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management
title_full Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management
title_fullStr Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management
title_full_unstemmed Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management
title_short Validation of the Diet Satisfaction Questionnaire: a new measure of satisfaction with diets for weight management
title_sort validation of the diet satisfaction questionnaire: a new measure of satisfaction with diets for weight management
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6298208/
https://www.ncbi.nlm.nih.gov/pubmed/30574344
http://dx.doi.org/10.1002/osp4.299
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