As presented in Table1, mean scores for the risk factor ranged from 4.33 to 5.22 on a 10-point scale. A one-way repeated measures ANOVA was conducted comparing the risk mean scores collected eight times over the scuba diving course. Mauchley’s test indicated that the assumption of spehericity had been violated [x2(27)557.142, p,0.05]; as a result, the degrees of freedom were corrected using Greenhouse– Geisser estimates of sphericity (e50.75). The results indicated a significant decrease in perceptions of risk across time, F(5.23,293.13)59.01, p,0.000, gp250.15 (Table2). Post hoc comparisons were made on the risk factor using the Bonferroni adjustments for multiple comparisons (a50.05) (Table3). Results revealed that perceived risk scores decreased significantly from pre-to-post open water dives, and pre-to-post offshore dives, as well as from pre-to-post course. While perceived risk scores decreased somewhat from pre-to-post for the first time on scuba, the change was not significant.Does perceived competence change during a basic scuba diving course?