The adequacy of Tracey’s spherical and Holland’s hexagonal model was tested in samples of Croatian and Serbian young adults. The joint sample consisted of 1190 respondents; 630 coming from Croatia and 560 from Serbia, both males and females, with an average age of 23 years. As a measure of vocational interests, Croatian and Serbian versions of Personal Globe Inventory were applied. The adequacy of models has been analyzed with Hubert and Arabie’s randomization test, Myors’ test, Multidimensional scaling procedure and Exploratory factor analysis. Results have shown that in both samples the spherical and hexagonal model explained the structure of vocational interests well and to a similar extent as in previous studies. Also, a great similarity of vocational interest structure was found in the Croatian and Serbian sample.

interests, spherical model, hexagonal model, RIASEC, PG I, Croatia, Serbia