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      PROPIEDADES PSICOMÉTRICAS DE INSTRUMENTOS UTILIZADOS PARA EVALUAR MATERIAL EDUCATIVO EN SALUD Translated title: PSYCHOMETRIC PROPERTIES OF INSTRUMENTS USED TO EVALUATE HEALTH EDUCATIONAL MATERIAL Translated title: PROPIEDADES PSICOMETRICAS DE INSTRUMENTOS UTILIZADOS PARA AVALIAR MATERIAL EDUCATIVO EM SAÚDE

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          Abstract

          Objetivo: determinar propiedades psicométricas de los instrumentos desarrollados por la OPS para evaluar la calidad y la efectividad potencial de material educativo. Materiales y métodos: se utilizaron instrumentos diseñados por la OPS para evaluar la calidad de material educativo en salud, diseñado durante el primer semestre del 2010. La evaluación fue realizada por grupos de usuarios del material, así: para material audiovisual, n = 74; material impreso, n = 116; material sonoro, n = 37; material visual: n = 71. Para cada instrumento se evaluó la factoriabilidad mediante las pruebas de Kaiser-Meyer-Olkin y de esfericidad de Bartlett. Posteriormente, se determinó la consistencia interna y estructura factorial del instrumento mediante la estimación del alfa de Cronbach, y el análisis factorial por el método de extracción de componentes principales. Resultados: todos los instrumentos fueron factorizables. El alfa de Cronbach para material audiovisual fue 0,687; la extracción de ejes principales reportó cuatro factores. Para material impreso: alfa de Cronbach de 0,83; la extracción de componentes principales arrojó un solo factor que explica el 45,1% de la varianza. En el material sonoro se encontró alfa de Cronbach = 0,73 y se extrajeron tres componentes principales. Para el material visual se encuentra alfa de Cronbach = 0,66 con tres componentes principales. Conclusiones: los instrumentos diseñados por la OPS para evaluar material educativo constituyen una herramienta confiable para evaluar los criterios de atracción, entendimiento, identificación y aceptación; se hace necesario profundizar en el análisis estructural de estos; no evalúan el criterio de inducción a la acción que otros autores referencian.

          Translated abstract

          Objective: to determine psychometric properties of the instruments developed by PAHO to assess quality and potential effectiveness of educational material. Materials and methods: instruments designed by PAHO to assess the quality of health educational materials designed during the first semester 2010 were used. The evaluation was carried out through materials user groups as follows: audiovisual material, n = 74; printed material, n = 116; audio recordings, n = 37; visual material, n = 71. Factorability was evaluated for each one of the instruments by using Kaiser -Meyer-Olkin's test and sphericity was evaluated with Bartlett's test. Internal consistency and factorial structure of the instrument were determined later using Cronbach's alpha estimate and the factorial analysis was carried out using the main components extraction method. Results: all instruments were factorable. Cronbach's alpha for audiovisual material was 0.687; extraction of principal axes reported 4 factors. For printed material: 0.83 Cronbach's alpha; the extraction of principal components showed a single factor which explains 45.1% of the variance. In the audio material it was found 0.73 Cronbach's alpha and three major components were extracted. For visual material Cronbach's alpha is = 0.66 with three main components. Conclusions: the instruments designed by PAHO to assess educational materials are a reliable tool for assessing the attraction, understanding, identifying and accepting criteria; however, it is necessary to go deeper in their structural analysis. The do not assess the induction to action criterion referenced by other authors.

          Translated abstract

          Objetivo: determinar propriedades psicométricas (é utilizada na psicologia para medir quais são os atributos que representam melhor às pessoas) dos instrumentos desenvolvidos pela OPS para avaliar a qualidade e a efetividade potencial de material educativo. Materiais e métodos: se utilizam instrumentos desenhados pela OPS para avaliar a qualidade de material educativo em sua saúde, desenhado durante o primeiro semestre de 2010. A avaliação foi realizada por grupos de usuários do material, assim: para material audiovisual, n = 74; material impresso, n=116; material sonoro, n = 37; material visual: n = 71. Para cada instrumento se avalio na fatoriabilidade mediante as probas de Kaiser-Meyer-Olkin e de esfericidade de Bartlett. Posteriormente, se determinou a consistência interna e estrutura fatorial do instrumento mediante a estimulação do alfa de Cronbach, e o analise fatorial pelo método de extração de componentes principais. Resultados: Todos os instrumentos foram fatorizavéis. O alfa de Cronbach para material audiovisuais foi 0,687; a extração de eixos principais reportou quatro fatores. Para material impresso: alfa de Cronbach de 0,83; a extração de componentes principais atirou um só fator que explica o 45,1% da variância. No material sonoro se encontrou alfa de Cronbach = 0,73 e se extraíram três componentes principais. Para o material visual se encontra alfa de Cronbach = 0,66 com três componentes principais. Conclusões: os instrumentos desenhados pela OPS para avaliar material educativo constituem uma ferramenta confiável para avaliar os critérios de atração, entendendo, identificação e aceitação; se faz necessária profundeza no analise estrutural destes; não avaliam o critério de introdução à ação que outros autores referenciam.

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          Most cited references19

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          Methodology Review: Assessing Unidimensionality of Tests and ltenls

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            Figuring out factors: the use and misuse of factor analysis.

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            Factor analysis is a technique which is designed to reveal whether or not the pattern of responses on a number of tests can be explained by a smaller number of underlying traits or factors. Similarly, it can be used to indicate whether or not the various items on a questionnaire can be grouped into a few clusters with each cluster reflecting a different construct. As with all multivariate statistical tests, it is quite powerful and can provide much information about the instruments being used. Similarly, there are many ways it can be abused and misinterpreted. This paper will explain the basics of factor analysis and provide some guidelines relating to how the results should be reported.
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              Evaluación de la unidimensionalidad de los items mediante análisis factorial

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                hpsal
                Hacia la Promoción de la Salud
                Hacia promoc. Salud
                Universidad de Caldas. Vicerrectoría de Investigaciones y Postgrados (Manizales )
                0121-7577
                July 2011
                : 16
                : 1
                : 13-26
                Affiliations
                [1 ] Universidad de Boyacá Colombia
                [2 ] Universidad Pedagógica y Tecnológica de Colombia Colombia
                [3 ] Universidad Pedagógica y Tecnológica de Colombia Colombia
                Article
                S0121-75772011000100002
                3f810cdf-3e3a-4f0b-b3a2-b6dec5657ee6

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Colombia

                Self URI (journal page): http://www.scielo.org.co/scielo.php?script=sci_serial&pid=0121-7577&lng=en
                Categories
                PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

                Public health
                Health communication,health education,health promotion,validity of tests,educational and promotional materials,Comunicação em saúde,educação em saúde,promoção da saúde,validez de as probas,materiais educativos,Comunicación en salud,educación en salud,promoción de la salud,validez de las pruebas,materiales educativos

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