A semi-structured questionnaire was piloted with 20 participants, who were not included in the main study. Feedback from the participants was used to improve the questionnaire. The questionnaire consisted of two parts. Close-ended and open-ended questions allowed the capturing of structured responses and the probing and capturing of narratives about specific sexual behaviour. Data on socio-demographic variables such as age, type of home and school residence, religious practices, year and faculty of study, and ethnicity were obtained. Questions probing sexual activity focused on recent use of contraceptives.