The effects of imagery direction on self-efficacy and performance in a dart throwing task were examined. Two imagery types were investigated: skill-based cognitive specific (CS) and confidence-based motivational general-mastery (MG-M). Seventy-five novice dart throwers were randomly allocated to one of three conditions: (a) facilitative imagery, (b) debilitative imagery, or (c) control. After 2 imagery interventions, the debilitative imagery group rated their self-efficacy significantly lower than the facilitative group and performed significantly worse than either the facilitative group or the control group. Efficacy ratings remained constant across trials for the facilitative group, but decreased significantly for both the control group and the debilitative group. Performance remained constant for the facilitative and the control groups but decreased significantly for the debilitative group. Similar to Short et al. (2002), our results indicate that both CS and MG-M imagery can affect self-efficacy and performance.