This research aimed to conduct studies of validity evidence based on internal structure and reliability through Cronbach alpha index (á) for the Scale of Perceived Social Support (old version) – EPSUS-A. The study sample consisted of 533 students from three states. Proceeded to the factor analysis of EPSUS-A initially composed of 77 items and, through this, it was possible to demonstrate validity based on internal structure for EPSUS-A. In this sense, the scale was composed of 36 items, clumped into four factors, namely, affective (composed of 17 items and á=0.92); social interactions (five items and á=0.75); instrumental (seven items and á=0.82) and coping with problems (seven items and á=0.83). The EPSUS-A was shown to be an appropriate scale for the assessment of social support, however further studies are needed in order to highlight other forms of validity for the instrument.
Psychological assessment; Psychological tests; Interpersonal interaction
