12 female intercollegiate basketball players trained to shoot free-throws were matched on performance at midseason then randomly divided into two groups. The treatment group received participatively set individual goals, feedback on shooting technique, and summative feedback. After the intervention, the treatment group had greater free-throw accuracy than the control group in seven of eight games, averaging 73.2% (93/127) versus the control group's 63.6% (63/99).
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Elizabeth L. Shoenfelt (1996) studied this question.
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