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Development and validation testing of a weight management nutrition knowledge questionnaire for adults

BACKGROUND/OBJECTIVES: Because no validated tool exists to assess nutrition knowledge regarding weight management we developed and tested the Weight Management Nutrition Knowledge Questionnaire (WMNKQ). SUBJECTS/METHODS: The questionnaire assesses nutrition knowledge in these categories: energy dens...

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Autores principales: Mikhail, Dalia, Rolls, Barbara, Yost, Kathleen, Balls-Berry, Joyce, Gall, Margaret, Blixt, Kristen, Novotny, Paul, Albertie, Monica, Jensen, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038421/
https://www.ncbi.nlm.nih.gov/pubmed/31911666
http://dx.doi.org/10.1038/s41366-019-0510-1
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author Mikhail, Dalia
Rolls, Barbara
Yost, Kathleen
Balls-Berry, Joyce
Gall, Margaret
Blixt, Kristen
Novotny, Paul
Albertie, Monica
Jensen, Michael
author_facet Mikhail, Dalia
Rolls, Barbara
Yost, Kathleen
Balls-Berry, Joyce
Gall, Margaret
Blixt, Kristen
Novotny, Paul
Albertie, Monica
Jensen, Michael
author_sort Mikhail, Dalia
collection PubMed
description BACKGROUND/OBJECTIVES: Because no validated tool exists to assess nutrition knowledge regarding weight management we developed and tested the Weight Management Nutrition Knowledge Questionnaire (WMNKQ). SUBJECTS/METHODS: The questionnaire assesses nutrition knowledge in these categories: energy density of food, portion size/serving size, alcohol and sugar sweetened beverages, how food variety affects food intake, and reliable nutrition information sources. In total 60 questions were reviewed by 6 experts for face validity and quantitative analysis was used to assess item difficulty, item discrimination, internal consistency, inter-item-correlation, test-retest reliability, construct validity, criterion validity, and convergent validity. RESULTS: The final WMNKQ contained 43 items. Experts removed 3 of the original 60 questions and modified 41. Eighteen items did not meet criteria for item difficulty, item discrimination, and/or inter-item correlation; 4 were retained. The WMNKQ met criteria for internal consistency (Cronbach's alpha = 0.88), reliability (test-retest correlation ρ = 0.90, P < 0.0001), construct validity (known groups comparison) - dietitians scored 16% better (p < 0.0001) than information technology workers, and criterion validity (pre- to post-intervention improvement in knowledge scores = 11.2% (95% CI 9.8–12.5, p < 0.0001)). Participants younger than age 55 scored significantly better than those over age 55 (convergent validity). CONCLUSIONS: The WMNKQ measures how well nutrition principles of weight management are understood.
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spelling pubmed-80384212021-04-11 Development and validation testing of a weight management nutrition knowledge questionnaire for adults Mikhail, Dalia Rolls, Barbara Yost, Kathleen Balls-Berry, Joyce Gall, Margaret Blixt, Kristen Novotny, Paul Albertie, Monica Jensen, Michael Int J Obes (Lond) Article BACKGROUND/OBJECTIVES: Because no validated tool exists to assess nutrition knowledge regarding weight management we developed and tested the Weight Management Nutrition Knowledge Questionnaire (WMNKQ). SUBJECTS/METHODS: The questionnaire assesses nutrition knowledge in these categories: energy density of food, portion size/serving size, alcohol and sugar sweetened beverages, how food variety affects food intake, and reliable nutrition information sources. In total 60 questions were reviewed by 6 experts for face validity and quantitative analysis was used to assess item difficulty, item discrimination, internal consistency, inter-item-correlation, test-retest reliability, construct validity, criterion validity, and convergent validity. RESULTS: The final WMNKQ contained 43 items. Experts removed 3 of the original 60 questions and modified 41. Eighteen items did not meet criteria for item difficulty, item discrimination, and/or inter-item correlation; 4 were retained. The WMNKQ met criteria for internal consistency (Cronbach's alpha = 0.88), reliability (test-retest correlation ρ = 0.90, P < 0.0001), construct validity (known groups comparison) - dietitians scored 16% better (p < 0.0001) than information technology workers, and criterion validity (pre- to post-intervention improvement in knowledge scores = 11.2% (95% CI 9.8–12.5, p < 0.0001)). Participants younger than age 55 scored significantly better than those over age 55 (convergent validity). CONCLUSIONS: The WMNKQ measures how well nutrition principles of weight management are understood. Nature Publishing Group UK 2020-01-07 2020 /pmc/articles/PMC8038421/ /pubmed/31911666 http://dx.doi.org/10.1038/s41366-019-0510-1 Text en © The Author(s) 2020 https://creativecommons.org/licenses/by-nc-nd/4.0/Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, and provide a link to the Creative Commons license. You do not have permission under this license to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Article
Mikhail, Dalia
Rolls, Barbara
Yost, Kathleen
Balls-Berry, Joyce
Gall, Margaret
Blixt, Kristen
Novotny, Paul
Albertie, Monica
Jensen, Michael
Development and validation testing of a weight management nutrition knowledge questionnaire for adults
title Development and validation testing of a weight management nutrition knowledge questionnaire for adults
title_full Development and validation testing of a weight management nutrition knowledge questionnaire for adults
title_fullStr Development and validation testing of a weight management nutrition knowledge questionnaire for adults
title_full_unstemmed Development and validation testing of a weight management nutrition knowledge questionnaire for adults
title_short Development and validation testing of a weight management nutrition knowledge questionnaire for adults
title_sort development and validation testing of a weight management nutrition knowledge questionnaire for adults
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038421/
https://www.ncbi.nlm.nih.gov/pubmed/31911666
http://dx.doi.org/10.1038/s41366-019-0510-1
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