Table 2.

Criterion-validity of graphology-based ADHD score (0 as cutoff)

Gender	Graphology		DSM (gold standard)
			Control	ADHD
Female	Negative	Count	16	2
		% within DSM (95%CI)	80.0 (specificity) (59.2–92.8)	28.6
	Positive	Count	4	5
		% within DSM (range)	20.0	71.4 (sensitivity) (35.2–93.5)
	Total	Count	20	7
		% within DSM	100.0	100.0
Male	Negative	Count	5	3
		% within DSM	62.5(specificity) (29.5–88.1)	21.4
	Positive	Count	3	11
		% within DSM	37.5	78.6 (sensitivity) (53.1–93.6)
	Total	Count	8	14
		% within DSM	100.0	100.0
Total	Negative	Count	21	5
		% within DSM (range)	75.0(specificity) (57.1–88.1)	23.8
	Positive	Count	7	16
		% within DSM (range)	25.0	76.2 (sensitivity) (55.4–90.3)
	Total	Count	28	21
		% within DSM	100.0	100.0