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versión On-line ISSN 0718-4808
LARRAIN SUNDT, M. Elena; CAMUS, Javier; ORELLANA, Yasna y ARRIETA, Montserrat. Construct Validity and Reliability of an Instrument to Assess the Impact of Female Images Presented by the Mass Media on Female Adolescents. Ter Psicol [online]. 2009, vol.27, n.1, pp.27-39. ISSN 0718-4808. http://dx.doi.org/10.4067/S0718-48082009000100003.
This paper aimed to estimate reliability and construct validity of an instrument to assess the impact of female images presented by the mass media on body image of female adolescents (IMAMIF) of Larraín, Camus, Orellana and Arrieta, in a sample of 662 female adolescents. It is a questionnaire of 45 statements that evaluates the impact that female images presented by mass media, has on body image of adolescent girls. An overall Cronbach's alpha coefficient of 0.969 was obtained revealing a high internal consistency. Through an exploratory factorial analy sis with principal factors it was found a structure conformed by three factors (Pathological Diet, Body Dissatisfaction and Self Objectivation). As a whole these 3 factors explain 84.11% of the correlational structure of the original variables.
Palabras clave : Female images; mass media; body image; validity; reliability.