The Influence of Sex,Education and Age on Test Scores on the Swedish Scholastic Aptitude Test

This study describes the effects of sex, education and age on the total test score on the Swedish Scholastic Aptitude Test (SweSA T), a test used in the selection process to colleges and universities in Sweden since 1977. Its use has so far been limited to one of four quota groups consisting of applicants 25 years or older and with more than four years of work experience. Statistical methods used in this study are regression models with dummy variables and estimated with a corner‐point parameterization. The results indicate rather genuine differences in every variable studied. Test takers with a higher education obtain a higher mean score than those with a lower education and older test takers obtain a higher mean score on the subtests vocabulary (WORD) and general information (GI) than younger persons. The mean test score for men is higher than the corresponding score for women, even if differences in education and age are controlled for. Finally some statistical problems related to the analysis of data of this type are discussed.