Secondary schools in Uganda play a crucial role in agricultural education, yet their effectiveness in yield improvement is not well understood. A scoping review was conducted using systematic search strategies in academic databases. Studies published between and were included, focusing on quasi-experimental designs. Findings indicate that while some schools use pre- and post-assessments for yield improvement measurement, there is a lack of standardised protocols across different regions. The review highlights the need for standardised methodologies to ensure consistency in yield assessment within secondary school systems in Uganda. Developing and implementing standardised protocols for yield assessments will enhance the reliability and validity of agricultural education outcomes. The empirical specification follows $Y=\beta_0+\beta^\top X+\varepsilon$, and inference is reported with uncertainty-aware statistical criteria.