Research Proposal: Assessing Intervention Programmes Aimed at Improving Matric Performance in Serial Underperforming Secondary Schools at UMzinyathi District in KwaZulu- Natal. PILOT STUDY Define pilot study. Discuss how many respondents will be targeted for the pilot study. In using quantitative study, a pilot study conducted amongst 10 respondents will suffice. In using qualitative studies, interview questions can be piloted using 1-2 respondents.