The data set contains the data from the learner background questionnaire, e.g. Learner profile, support received and learner participation, learner education and other background, school environment, reading proficiency, textbooks and learning materials, English and Mathematics class conditions. There were 378 variables and 6196 cases (2386 grade 9 and 3810 grade 11 learners). Slight differences occur between the realized sample as stated in the reports and those that appear in the published data. Cases were omitted in the learner questionnaire data if a paired learner test was not available. Learners who were absent on the testing would not have their background information included in the data.