Table 5.

Post hoc comparisons of provider diagnostic certainty among diagnostic groups

Group	N	Mean1	SD	Games Howell mean difference
				ASD suspected	Diagnosis uncertain	No ASD
ASD diagnosed	145	3.77	0.46	1.27**	1.67**	0.94**
ASD suspected	14	2.50	0.65	–	0.41	− 0.33
Diagnosis uncertain	22	2.09	0.61		–	− 0.74*
No ASD	23	2.83	0.72			–

^*p < .01; **p < .001

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