A relational study was designed to describe the relationship between students’ demographic and school-related characteristics, and their academic performance, and to identify the characteristics that explain and predict students’ academic performance. Results revealed negligible to substantial association between the students’ academic performance and selected characteristics, as well as among student characteristics. The variables found to explain and predict variance in the dependent variable, students’ academic performance, were previous academic performance, gender, age, work done at home, time spent reading in the library, students’ attitudes toward school, and involvement in peer group discussion.