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Hacia la Promoción de la Salud

Print version ISSN 0121-7577

Abstract

BARRERA SANCHEZ, Lina F; MANRIQUE ABRIL, Fred G  and  OSPINA DIAZ, Juan Manuel. PSYCHOMETRIC PROPERTIES OF INSTRUMENTS USED TO EVALUATE HEALTH EDUCATIONAL MATERIAL. Hacia promoc. Salud [online]. 2011, vol.16, n.1, pp.13-26. ISSN 0121-7577.

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.

Keywords : Health communication; health education; health promotion; validity of tests; educational and promotional materials.

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