Table 8 Foreign experts’ perception of the importance of interventions regarding ASD children’s social communication according to their intervention experience

	sub skill	5 year ↓ (n=19)		6-10 year (n=11)		11 year ↑ (n=18)		F	P
		M	SD	M	SD	M	SD
Social-emotional reciprocity	asking for permission	2.00	0.90	1.58	0.42	1.98	0.50	2.07	0.138
	Showing	1.14	0.86	2.02	0.67	2.05	0.85	3.68	0.231
	Say hello	3.32	1.31	4.20	0.43	4.65	0.57	31.46***	0.000
	Giving and receiving things	4.01	0.34	4.54	0.36	4.49	0.45	22.40***	0.000
	Talk to each other	2.14	1.01	1.45	1.43	2.44	0.25	1.60	0.078
	Answer (yes/no)	3.44	1.03	4.32	0.45	4.76	0.29	48.18***	0.000
	Demanding	4.30	0.23	4.65	0.82	4.98	0.01	19.03***	0.000
	a call-out reaction	4.21	1.00	4.34	0.34	4.78	0.54	11.28***	0.000
	Calling (other’s name)	2.03	0.70	2.32	0.87	2.10	0.47	1.83	0.167
	imitation behavior	4.07	0.40	4.56	0.23	4.89	0.42	8.54***	0.000
non-verbal behavior	Eye contact	4.43	0.56	4.43	0.35	4.56	0.66	1.83	0.167
	Pointing out	4.53	0.76	4.01	0.77	4.11	0.78	3.17	0.057
	a shift in one’s gaze	3.56	0.38	4.45	0.24	4.64	0.61	63.74***	0.000
	Facial expression	4.12	0.78	3.12	0.56	4.21	0.87	22.62***	0.000
Forming and Maintaining Relationships	following instructions	4.12	0.35	4.75	0.53	4.86	0.61	23.15***	0.000
	Giving out	3.44	0.84	3.34	0.63	3.21	0.55	0.083	0.920
	Helping	1.82	0.71	1.56	0.57	2.12	0.63	8.87***	0.000
	Sharing the game	2.73	0.68	3.36	0.76	3.67	0.89	16.13***	0.000
	waiting for one’s turn	4.92	0.45	4.35	0.77	4.76	0.63	8.43***	0.000