Constructing Holland's Hexagon in South Africa: Development and Initial Validation of the South African Career Interest Inventory

The purpose of this study was to document the development of the South African Career Interest Inventory and to examine the structural validity of Holland's circular/hexagonal model in the South African context. The validity of Holland's model was investigated in a sample of 985 university students in Study 1 and 175 university students and adults in Study 2. The randomization test of hypothesized order relations and covariance structure modeling were used to investigate the fit of a tight circular ordering and four circumplex models. The randomization test found good fit for the tight circular ordering in both the studies. Covariance structure modeling demonstrated unsatisfactory fit across the four circumplex models in Study 1 but satisfactory fit in Study 2. The results suggest that the structural validity of Holland's circular ordering model in South Africa is tenable. Recommendations for research and practice are presented.