Table 9.

Correlations between Scoff index and athletic and academic performance.

		Scoff	Hours of Sleep per Day	Do You Find it Hard to Concentrate?	Do You Feel Tired?	Do You Feel Tired in the Training Sessions?
Scoff	Pearson correlation	1	−0.251 **	−0.122 *	−0.193 **	−0.376 **
	Sig. (bilateral)		<0.001	0.01	<0.001	<0.001
	N	393	393	393	393	393

** Correlation is significant at the 0.005 level. * The correlation is significant at the 0.05 level.