Psychometric analysis of the intrafamily relationships scale

Abstract

The aim of this article is to present scientific evidences of validity and reliability of the Intrafamily Relations Scale (I.R.S.). A total of 1498 school-Aged adolescents participated, selected from a proportionate stratified sample, aged between 11 and 15 years, of whom 728 were boys and 770 girls. The results obtained through exploratory and confirmatory analysis show that the scale has a clear and coherent structure of two factors: unity, support and expressiveness (factor 1) and family difficulties (factor 2). Reliability is high on the full scale and on both factors. Regarding validity, both factors have significant and coherent correlations with the scientific literature in the following variables: Attitudes towards institutional authority, transgression of norms, criminal and violent behavior, violence and school victimization. The results obtained are discussed.