Table 5 Domestic experts’ perception of the importance of intervention on social communication of ASD infants according to their intervention experience

	sub skill	5 year ↓ (n=47)		6-10 year (n=20)		11 year ↑ (n=8)		F	P
		M	SD	M	SD	M	SD
Social-emotional reciprocity	asking for permission	2.20	1.90	1.78	0.42	2.30	0.50	0.709	0.495
	Showing	2.14	0.96	2.21	0.65	2.27	0.55	2.59	0.230
	Say hello	3.78	1.01	4.60	0.24	4.78	0.81	17.85***	0.000
	Giving and receiving things	4.20	0.70	4.40	0.54	4.76	0.35	7.76***	0.000
	Talk to each other	2.96	1.21	1.25	1.42	2.96	0.66	12.33***	0.000
	Answer (yes/no)	3.43	1.01	3.90	0.87	4.67	0.27	13.95***	0.000
	Demanding	3.30	0.98	4.65	0.80	4.89	0.34	37.97***	0.000
	a call-out reaction	4.08	1.10	4.45	0.74	4.43	0.54	4.87	0.114
	Calling (other’s name)	2.06	0.70	2.03	0.88	2.12	0.47	3.84	0.153
	imitation behavior	4.07	0.40	4.20	0.51	4.71	0.42	30.07***	0.000
non-verbal behavior	Eye contact	4.23	0.56	4.28	0.76	4.31	0.48	2.56	0.231
	Pointing out	4.12	0.76	4.52	0.77	4.02	0.78	4.79*	0.011
	a shift in one’s gaze	3.56	0.38	4.72	0.24	4.35	0.67	3.54	0.103
	Facial expression	2.12	0.78	2.41	0.49	2.42	0.46	7.03	0.243
Forming and Maintaining Relationships	following instructions	4.03	0.97	4.46	0.35	4.64	0.64	8.64***	0.000
	Giving out	3.44	0.88	3.54	0.63	3.74	0.55	3.08	0.051
	Helping	2.82	0.75	3.56	0.57	3.72	0.63	20.87***	0.000
	Sharing the game	2.73	0.68	3.63	0.76	3.73	1.30	18.59***	0.000
	waiting for one’s turn	3.81	0.36	4.63	0.77	4.71	0.68	31.45***	0.000