TABLE 2.

The mean frequency (standard deviation) of target behaviors, associated d-statistics and number of participants exceeding d-statistic cut-offs across social interaction conditions (full social interaction and full social interaction minus physical interaction, eye contact, laughing/smiling, verbal interaction).

	Reward conditions
	Full social interaction	No physical	No eye contact	No laughing	No verbal interaction	Control condition	X2	p
Mean frequency of target behavior	5.07 (4.23)	5.40 (5.02)	4.77 (4.77)	4.24 (3.67)	4.26 (4.35)	2.63 (1.87)	6.26	0.23
Mean d-statistic	0.21	0.21	0.12	0.12	0.10	–	4.23	0.37
>0.5 (%)	19.0 (4)	33.3 (7)	19.0 (4)	9.5 (2)	14.3 (3)	–	–	–