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      Development and validation of nutrition knowledge test for high school students using a novel study design: a Rasch analysis Translated title: Desarrollo y validación de una prueba de conocimientos sobre nutrición para estudiantes de secundaria utilizando un diseño de estudio novedoso: un análisis de Rasch

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          Abstract

          Abstract Introduction: The creation of a high-quality, valid, and reliable knowledge test for high school students will contribute to establishing dietary programs more conscious, for individuals and society. The aim of the study is to develop a valid and reliable nutrition knowledge test for high school students. Methodology: Data were collected from 346 high school students age from 14 to 18 years. Rasch modelling was used for validating the test. The expert group followed a five-step test developing process and developed 22 multiple-choice items. Results: Findings indicated that 20 of 22 test items showed high internal consistency and reliability for both test items and person participating in this study. The Wright map indicated a well distributed item difficulties and relatively good person abilities. Conclusions: It is thought that the study findings obtained through the Rasch modelling and the knowledge test created will be a guiding tool in respect of multidimensionality, validity, and reliability for the concept, such as nutrition which is crucial in human life.

          Translated abstract

          Resumen Introducción: La creación de una prueba de conocimientos de alta calidad, válida y confiable para estudiantes de secundaria contribuirá a establecer programas dietéticos más conscientes, para las personas y la sociedad. El objetivo del estudio es desarrollar una prueba de conocimiento nutricional válida y confiable para estudiantes de secundaria. Metodología: Se recolectaron datos de 346 estudiantes de secundaria de 14 a 18 años. Se utilizó el modelado de Rasch para validar la prueba. El grupo de expertos siguió un proceso de desarrollo de pruebas de cinco pasos y desarrolló 22 ítems de opción múltiple. Resultados: Los resultados indicaron que 20 de los 22 ítems de la prueba mostraron una alta consistencia interna y confiabilidad tanto para los ítems de la prueba como para la persona que participó en este estudio. El mapa de Wright indicó un elemento bien distribuido con dificultades y habilidades personales relativamente buenas. Conclusiones: Se piensa que los hallazgos del estudio obtenidos a través del modelado de Rasch y la prueba de conocimiento creada serán una herramienta orientadora respecto a la multidimensionalidad, validez y confiabilidad del concepto, como la nutrición, que es crucial en la vida humana.

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          Development of a general nutrition knowledge questionnaire for adults.

          This paper describes the development of a reliable and valid questionnaire to provide a comprehensive measure of the nutritional knowledge of UK adults. The instrument will help to identify areas of weakness in people's understanding of healthy eating and will also provide useful data for examining the relationship between nutrition knowledge and dietary behaviour which, up until now, has been far from clear. Items were generated paying particular attention to content validity. The initial version of the questionnaire was piloted and assessed on psychometric criteria. Items which did not reach acceptable validity were excluded, and the final 50 item version was administered to two groups differing in nutritional expertise on two occasions to assess the construct validity and test-retest reliability. The questionnaire was developed in 1994 in the UK. Three hundred and ninety-one members of the general public, recruited via their places of work, completed the questionnaire at the piloting stage. The final version was administered to 168 dietetics and computer science students following a university lecture. The internal consistency of each section was high (Cronbach's alpha = 0.70-0.97) and the test-retest reliability was also well above the minimum requirement of 0.7. Nutrition experts scored significantly better than computer experts [F(1167) = 200.5, P<0.001], suggesting good construct validity. The findings demonstrate that the instrument meets psychometric criteria for reliability and construct validity. It should provide a useful scale with which to reassess the relationship between knowledge and dietary behaviour.
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            Rasch Analysis for Instrument Development: Why, When, and How?

            Rasch psychometric techniques can be used to guide the development and analysis of tests and surveys. Rasch techniques also can be used to explain the meaning of a test score or survey score. Of great interest to researchers and instructors is that Rasch techniques allow different forms of a test to be developed.
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              Validation of the Revised Brief Diabetes Knowledge Test (DKT2).

              The purpose of this study is to examine the reliability and validity of the revised Diabetes Knowledge Test (DKT2). The original test was updated to reflect current diabetes care and education guidelines. The test has 2 components: a 14-item general test and a 9-item insulin use subscale.
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                Author and article information

                Journal
                renhyd
                Revista Española de Nutrición Humana y Dietética
                Rev Esp Nutr Hum Diet
                Academia Española de Nutrición y Dietética (Pamplona, Navarra, Spain )
                2173-1292
                2174-5145
                March 2022
                : 26
                : 1
                : 72-82
                Affiliations
                [1] Karaman orgnameKaramanoglu Mehmetbey University orgdiv1Faculty of Sports Sciences Turkey
                Article
                S2174-51452022000100072 S2174-5145(22)02600100072
                10.14306/renhyd.26.1.1486
                a60b9df2-a6de-4330-ad9a-a206b380344c

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 08 September 2021
                : 30 December 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 41, Pages: 11
                Product

                SciELO Spain

                Categories
                Investigations

                Encuestas y Cuestionarios,Dieta Saludable,Nutrición,Adolescente,Surveys and Questionnaires,Diet, Healthy,Nutrition,Adolescent

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