El Análisis Factorial Exploratorio (AFE) constituye una técnica de uso habitual en la investigación psicométrica. A pesar de su popularidad, las aplicaciones que hacemos los investigadores no siempre se ajustan a las recomendaciones de los expertos. En este trabajo se analizan 46 aplicaciones del AFE publicados en seis ejemplares de la RIDEP (42,2 a 47,2). Las aplicaciones se cotejan con las recomendaciones existentes en cuanto a: (a) la naturaleza de los datos a factorizar y la adecuación del AFE, (b) los procedimientos de extracción factorial, (c) los criterios para definir el número de factores, y (d) el tipo de método de rotación. Globalmente, se observa que las aplicaciones prácticas distan bastante de las recomendaciones. Se sugieren guías para autores y revisores. Esperamos que el trabajo contribuya al desarrollo de mejores prácticas en el uso del AFE.
Injuries resulting from motorcycle crashes constitute a growing problem in Argentina and other Latin American countries. The problem is aggravated because helmet use is not widespread. This observational study analysed the prevalence of helmet use and related factors in a city in Argentina. The sample consisted of 2542 observations of motorcyclists. The results show an incidence of helmet use of 69.8% for drives and 43.4% for passengers. Helmet use was greater among women. Environmental and temporal conditions were related with the rate of helmet use. The findings indicate a considerable increase in helmet use with respect to prior years, providing evidence in favour of government policies. However, the number of motorcycles in circulation has tripled in the past five years, and therefore, the public health impact of injuries due to motorcycle crashes persists.
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