This paper examines academic achievement of males following formal training in self-assessment. It adds to current literature by proposing a tried-and-tested method of improving academic achievement in males at a time when they appear to be marginalised. The sample comprised 515 participants (233 males), representing 25.2% of that high school leaving cohort in a small Caribbean country. Academic achievement was examined in all subjects taken by participants at a regional examination. Examination results indicate that males who were formally trained in self-assessment skills outperformed their untrained male counterparts. Implications for teaching and learning are explored and several practical suggestions are offered. (Contains 4 tables.)