Development and validation testing of a weight management nutrition knowledge questionnaire for adults.
Int J Obes (Lond)
; 44(3): 579-589, 2020 03.
Article
en En
| MEDLINE
| ID: mdl-31911666
ABSTRACT
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.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Peso Corporal
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Conocimientos, Actitudes y Práctica en Salud
/
Encuestas Nutricionales
Tipo de estudio:
Qualitative_research
Límite:
Adult
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Aged
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Humans
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Middle aged
Idioma:
En
Año:
2020
Tipo del documento:
Article