This study investigated the effects of goal setting, self-efficacy, competition, and personality on the performance of a sit-up task. Prior to testing, participants were administered the Sport Orientation Questionnaire (SOQ; Gill & Deeter, 1988). Using a 2 × 2 + 1 design, 60 participants were randomly assigned to one of four conditions: (a) competition, medium goal; (b) competition, high goal; (c) no competition, medium goal; and (d) no competition, high goal. A fifth group from the same population (n = 15) was added and served as the do-best comparison group. The main effect of goal level was borderline significant (p < .059), and this effect was fully mediated by personal goal level and self-efficacy. Also, both the medium and hard goal groups significantly outperformed the do-best group. Competition did not affect performance, personal goals, commitment, or self-efficacy. The SOQ was significantly related to performance, but its effects were fully mediated by personal goals and self-efficacy.
Bart S. Lerner and Edwin A. Locke
Bart S. Lerner, Andrew C. Ostrow, Michael T. Yura, and Edward F. Etzel
The purposes of this study were to investigate the effects of goal-setting and imagery programs, as well as a combined goal-setting and imagery training program, on the free-throw performance among female collegiate basketball players over the course of an entire season. A multiple-baseline, single-subject A-B-A design was employed in which participants were randomly assigned to one of three interventions: (a) goal-setting (n = 4), (b) imagery (n = 4), or (c) goal-setting and imagery (n = 4). Free-throw data were collected during practice sessions. Data were examined by way of changes in mean, level, trend, latency, and variability between baseline and intervention, and then between intervention and a second baseline phase. Three participants in the goal-setting program, and one participant in the goal-setting and imagery program, increased their mean free-throw performance from baseline to intervention. However, three participants in the imagery program decreased their mean free-throw performance from baseline to intervention. Goal discrepancy scores also were investigated. A positive correlation was found between participants’ free-throw performance and personal goals.