Abstract
The principal objective of the study was to determine the relationship between the fourth edition (2003) of the Locus of Control Inventory (LCI) and version 5 of the Sixteen Personality Factor Questionnaire (16PF). After some minor changes the LCI was applied jointly with the 16PF to a sample of 3089 first-year university students. Complete records were obtained in respect of 3033 participants for the LCI, and 2798 for both the 16PF and the LCI. An iterative principal factor analysis of the LCI was done. The three-factor-structure previously found was substantiated by the analysis. Highly acceptable reliabilities were obtained. The 16PF yielded six global factors with reliabilities that ranged from 0,721 to 0,861. Canonical correlations of 0,659; 0,455 and 0,322 were obtained between the three scales of the LCI and the primary factors of the 16PF.