Abstract
Psychometrical analysis of the spanish version of the "Inventory of Family Support for Workers". The aim of this paper is to test the psychometrical characteristics of a scale of social support for workers: the "Inventory of Family Support for Workers" (IFSW) by King, Mattimore, King and Adams (1995). This questionnaire has been translated from English into Spanish due to the lack of this type of instruments in this language. According to the theoretical construct, two main dimensions (subscales) compose this questionnaire: emotional and instrumental support. It has been applied to a Spanish sample of 250 workers, both men and women, who live into a dual-career family. In a similar way to the original authors, a very high reliability has been obtained for both the emotional support (alpha= .96, 29 items) and the instrumental support (alpha= .91, 11 items) subscales. In order to check the instrument validity data, the relationships between scores in both subscales and other psychological constructs theoretically related have been studied (work-family conflict, job satisfaction, job involvement and psychological well-being). Results confirm the "principal effect" hypothesis of social support on psychological well-being. The "specificity hypothesis" of social support is also supported.
