Table 4 Validity of the model based on the difference between real scores (± SD) and predicted scores (± SD) for the repeated-sprint ability of the control group.

Control group		Model
Maturity status	RSA real score (s)	Predicted score (s)	Difference (s)	t	p
Late	59.01 (3.30)	59.10 (3.90)	– .09 (1.06)	– .23	n.s.
On Time	56.17 (3.61)	56.28 (3.69)	– .10 (1.29)	– .44	n.s.
Early	55.54 (4.05)	55.40 (4.30)	.15 (.79)	.70	n.s.
Total	56.44 (3.79)	56.47 (4.00)	– .03 (1.13)	– .21	n.s.

n.s. nonsignificant