TABLE 2.

Descriptives (M, SD, α) of and mutual (manifest) intercorrelations r (according to Spearman) between the constructs cogIll, ml, g, and rl.

Competence	Theory max.	M (SD)	α	cogIll	ml	g	rl
cogIll	6	1.41 (0.99)	0.21	–
Mathematical literacy (ml)	34	14.16 (6.10)	0.82	0.42**	–
General intelligence (g)	12	4.82 (1.73)	0.43	0.16**	0.25**	–
Reading literacy (rl)	14	7.01 (3.17)	0.74	0.36**	0.69**	0.23**	–

**indicates p < 0.01.