Cognitive Flexibility, Theory of Mind, and Hyperactivity/Inattention

Table 1

Means and standard deviations of scores.

Variable	Year 1		Year 2		𝑡-test
	M	SD	M	SD	𝑡	p
Cognitive flexibility (max. score 3)	1.63	0.54	2.11	0.55	7.65	<.01
ToM (max. score 8)	4.09	1.88	5.40	1.43	6.44	<.01
Mother rated hyperactivity/inattention (max. score 10)	3.30	2.27	3.19	2.30	−0.54	.59
Teacher rated hyperactivity/inattention (max. score 10)	2.16	2.72	2.38	2.50	0.69	.49

N = 70.