Table 1 Participant demographics and group characteristics

Sex, Males: Females

33:13

19:4

30:19

12:9

Mean (SD)

n

Mean (SD)

n

Mean (SD)

n

Mean (SD)

n

Age, years

13.1 (2.7)

46

14.6 (10.3)

23

12.2 (3.0)

49

13.1 (3.2)

21

SRS-2

Raw score

90.0 (29.2)

45

84.1 (26.5)

23

16.1 (12.3)

42

11.7 (9.6)

21

T score

73.3 (12.6)

45

70.4 (10.9)

23

43.8 (5.0)

42

42.1 (4.1)

21

KBIT-2 IQ

Verbal

94.5 (19.2)

39

100.6 (14.1)

23

105.6 (9.8)

33

106.1 (9.8)

21

Nonverbal

99.2 (17.7)

39

105.0 (10.3)

23

109.8 (13.8)

33

109.8 (13.0)

21

Composite

96.3 (19.0)

40

103.4 (13.0)

23

109.3 (10.9)

33

109.4 (10.0)

21

ADOS Mod2

Overall

11.3 (2.9)

3

11.0 (0.0)

1

Social Com

8.3 (0.5)

3

8.0 (0.0)

1

RRB

3.0 (2.4)

3

3.0 (0.0)

1

ADOS Mod3

Overall

15.4 (6.2)

13

14.2 (6.2)

9

Social Com

11.3 (5.7)

13

8.4 (4.8)

9

RRB

3.5 (2.7)

13

3.8 (2.6)

9

ADOS Mod4

Overall

7.0 (2.9)

3

5.0 (1.0)

2

Social Com

8.4 (3.7)

5

8.0 (4.1)

4

RRB

1.4 (1.7)

5

1.8 (1.8)

4

ADIR

Social

18.5 (5.6)

13

16.4 (5.6)

8

Verbal

12.8 (5.5)

13

11.0 (5.8)

8

RRB

4.2 (2.2)

13

3.8 (1.7)

8