Table 7.

Post hoc comparisons of provider diagnostic certainty among diagnostic groups

				Games Howell Mean Difference
Group	N	Meana	SD	ASD Suspected	Diagnosis Uncertain	No ASD
ASD Diagnosed	79	3.28	0.88	NAb	1.04**	− 0.29*
ASD Suspected	7	3.00	0.00	–	NA	NA
Diagnosis Uncertain	21	2.24	0.77		–	− 1.33**
No ASD	90	3.57	0.56			–

^*p < .05; **p < .001

^aClinicians rated diagnostic certainty on a Likert scale, with 4 = completely certain, 3 = somewhat certain, 2 = somewhat uncertain, and 1 = completely uncertain

^bASD Suspected was not analyzed because SD = 0.00