摘要：Eight hundred and ninety-nine (431 male, 467 female and one missing value) Grade 8 and 9 (n = 184 and 713, respectively, with two missing values) learners from secondary schools in Mpumalanga completed a science and mathematics questionnaire. Student's t tests showed that male and female, as well as language groups' scores, differed significantly. Stepwise non-linear regression shows that a combination of factors contributes significantly to learner, science and mathematics performance (R 2 = 25%, 20%, and 11%, respectively). South African Journal of Education Vol. 26(2) 2006: 229–252
