TABLE 3.

Parameter estimates for the relationships between the errors and the technical and context-related variables for men’s and women’s singles players.

Variables	Error
	Men (n = 4,080)			Women (n = 4,339)
	Z-score	Coef.	ME	Z-score	Coef.	ME
Technical variables
Strokes per rally	0.600	0.002	0.001	–3.170	−0.010**	–0.004
Forehand stroke	–0.860	–0.047	–0.018	–2.750	−0.141**	–0.052
Overhead stroke	–0.480	–0.031	–0.012	–2.400	−0.148*	–0.056
Defensive action	26.510	1.327**	0.462	22.370	1.001**	0.351
Situational variables
Game status	–0.760	–0.034	–0.013	–2.770	−0.118**	–0.044
Result against serve	–0.890	–0.039	–0.015	–3.560	−0.151**	–0.056
Importance of rally	–0.880	–0.088	–0.034	0.870	0.080	0.029
Importance of set	1.260	0.076	0.029	–2.440	−0.137*	–0.052
Constant	–3.430	−0.237**		4.180	0.280**
Pseudo R-squared	0.172			0.117

*P < 0.05, **P < 0.01.

Coef., Probit regression coefficient; ME, marginal effect.