Table 4 VABS developmental age-equivalents (DAEs) and developmental quotients (DQs) for each age group

Communicative skills

Number

6

12

7

8

33

Mean DAE months (±1 SD)

8.3 (3.0)

16.4 (7.5)

14.4 (6.2)

18.1 (15.6)

14.9 (9.6)

Range DAE months

6–13

6–33

6–21

6–51

6–51

Mean DQ (±1 SD)

70 (28)

34 (11)

16 (8)

14 (13)

32 (25)

Range DQ

37–109

16–51

6–25

5–43

5–109

Social skills

Number

6

12

7

8

33

Mean DAE months (±1 SD)

9.2 (4.5)

20.7 (8.9)

14.3 (9.4)

22.9 (19.6)

17.8 (12.6)

Range DAE months

1–14

3–39

3–26

1–61

1–61

Mean DQ (±1 SD)

72 (41)

44 (16)

16 (11)

17 (16)

37 (29)

Range DQ

16–138

7–65

3–29

1–51

1–138

Daily skills

Number

6

12

7

8

33

Mean DAE months (±1 SD)

11.7 (3.2)

20.8 (9.7)

21.3 (9.6)

25.3 (15.9)

20.3 (11.3)

Range DAE months

10–18

10–39

10–35

14–59

10–59

Mean DQ (±1 SD)

99 (34)

44 (15)

24 (13)

20 (13)

44 (34)

Range DQ

59–156

24–64

11–49

9–50

9–156