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In this study, we extended the work of Rees and Hardy (2004) by examining the main and stress-buffering effects of social support upon sports performance in a different context, using a different outcome measure, and a specific time-frame. A high-level performance sample of 117 male golfers (mean age 24.8, s = 8.3) completed measures of social support and stressors before competitions. Performance outcome was recorded. Moderated hierarchical regression analyses revealed significant (P < 0.05) main effects for stressors upon performance in 8 of the 11 models tested (R2 = 0.08 - 0.21). Over and above the variance accounted for by stressors, there were significant (P < 0.05) main effects for social support upon performance in all models tested (DeltaR2 = 0.10 - 0.24). In all models, stressors were associated with worse performance, whereas social support was associated with better performance. There were no significant interactions (stress-buffering effects). Main effects for social support upon performance suggest that social support may have aided performance directly, regardless of the level of stress.
Rees et al. (Fri,) studied this question.