This study aimed at verifying the internal structure of the Intelligence Test - TI using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The sample was composed of 2163 subjects, 1013 of those to the EFA study and 1150 to CFA. In both cases, the subjects were over 18 years old, both males and females, with school level ranging from elementary school to college. Initially an EFA was run and suggested two factors, the first one including items 18 to 30, and the second one including items 1 to 17, but with a moderate and positive correlation between factors. After this result, the AFC was run, which also suggested a two-factor model as the most adequate. Despite results showing a bi-dimensional structure, more studies are necessary for a better understand the internal structure of the TI.
Validity evidence; Factor analysis; Reasoning; Psychometrics; Instrument development
