This study investigated Griffin and Keogh's movement confidence model. This model holds that movement confidence is determined by the joint influence of perception of ability, the potential for enjoying moving, and the potential for harm. Undergraduate students, 20 males and 20 females, attempted three modified back dives. Before each dive, subjects completed measures on perceived diving confidence, perceived diving ability, potential for enjoying the dive, and potential for harm. Scale internal consistency ranged from «=.62 to «=.85. Regression analyses found a three-term model was a significant predictor of movement confidence (R²s=.54, .67, .71, for Dives 1, 2, and 3, respectively). However, hierarchical regression analyses indicated only potential for physical harm made a significant, unique contribution. The data highlight the importance of perceived movement sensations in influencing the appraisal of movement confidence.