The main objective of the research was to define and dimensionalize the self concept. In a theoretical approach similar to the debates on the meaning of intelligence, this study attempted to determine whether the self concept is a general factor which explains more specific selves, whether it connotes a hierarchical structure, or whether it is best described in a taxonomic system. The findings suggest the last, with distinct self-perceptions emerging from a schema of minimal correlates. This model was examined in an educational setting, and the results were submitted to multivariate analysis. Theoretical considerations from Spearman, Thurstone, Cattell, Guilford, and Piaget comprise the foundation for the discussion on self-concept theory. (Author)