The purpose of this study was to examine the relationship between collective efficacy and coaching behaviors in professional volleyball league of Iran clubs (2008). Athletes (N=153) from 13 volleyball teams completed demographic questionnaire, collective efficacy questionnaire (CEQ) and the perceived version of the leadership scale for sport (LSS). The questionnaires were administered in the second half-season. Results showed coaches' behaviors of training and instruction and social support positively correlated with the collective efficacy. The comparison of coaching behaviors demonstrated that coaches exhibited higher training and instruction and lower democratic behavior. Also, coaches of successful teams exhibited higher training and instruction and social support behaviors than less successful and unsuccessful teams. Results supported the relationship between collective efficacy and team performance and revealed that high efficacy teams performed significantly better than teams with low levels of collective efficacy. Overall, our findings support the important role of coaching behaviors and collective efficacy in successful team performance. In addition, results highlighted the effect of coaching behaviors in collective or team efficacy.
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