Figure 4.

Meta-regression plot of the relationship of percent male in each study sample and the overall self-confidence and sport performance relationship, R² = 0.22, F(1,43) = 6.62, p < 0.01, Goodness of fit Q(43) = 112.73, p < 0.0001, expressed as Fisher’s Z. Larger circles represent studies with more participants. Middle line is the regression line; the upper and lower lines are the 95% confidence intervals.