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Table 1 Means and standard deviation of standard scores for CELF and CASL subtests

From: Within-task variability on standardized language tests predicts autism spectrum disorder: a pilot study of the Response Dispersion Index

Test

Unaffected

ASD-only

LI-only

ASD + LI

N < 21

Mean (SD)

N < 21

Mean (SD)

N < 21

Mean (SD)

N < 21

Mean (SD)

N all

N all

N all

N all

CELF

Concepts and Following Directions

68

10.31 (2.47)

9

10.56 (2.19)

25

4.60 (2.52)

21

3.57 (2.84)

Formulated Sentences

108

11.33 (2.30)

17

9.71 (2.34)

28

5.43 (2.92)

29

4.07 (3.32)

332

11.51 (2.17)

18

9.72 (2.27)

46

5.46 (3.01)

32

3.91 (3.25)

Recalling Sentences

115

10.53 (2.44)

19

8.16 (2.81)

27

5.33 (2.11)

32

3.50 (3.17)

348

10.04 (2.62)

20

7.85 (3.07)

47

4.77 (2.47)

35

3.46 (3.15)

Word Structure

34

9.71 (2.34)

6

8.67 (2.50)

16

4.19 (2.56)

11

4.27 (3.32)

Word Definitions

45

12.62 (2.52)

9

11.56 (1.81)

3

5.67 (0.58)

10

5.20 (4.37)

278

12.96 (2.31)

9

11.56 (1.81)

23

7.61 (3.65)

13

5.08 (4.25)

Word Classes-Total

78

11.44 (2.70)

12

9.92 (1.68)

12

6.08 (1.93)

19

5.37 (3.37)

311

11.67 (2.13)

13

9.31 (2.72)

31

6.26 (2.56)

22

5.00 (3.32)

CASL

Ambiguous Sentences

59

102.20 (15.30)

9

90.22 (19.27)

7

80.14 (6.44)

10

77.50 (12.42)

286

97.73 (13.68)

10

87.90 (19.60)

25

75.12 (8.82)

13

76.77 (13.92)

Inference

67

101.37 (11.30)

7

83.29 (24.20)

12

78.50 (16.51)

19

70.58 (20.61)

70

101.17 (11.75)

7

83.29 (24.20)

12

78.50 (16.51)

19

70.58 (20.61)

Pragmatic Judgment

115

103.17 (10.88)

21

88.29 (16.70)

27

79.33 (12.96)

28

65.93 (19.75)

343

98.21 (11.09)

22

86.09 (19.28)

47

79.77 (14.61)

31

64.97 (20.28)

Non-literal Language

85

106.01 (12.92)

13

96.08 (17.11)

17

85.53 (14.52)

22

70.68 (21.22)

311

98.98 (13.84)

14

92.07 (22.25)

36

77.56 (17.07)

25

68.80 (21.85)

Meaning from Context

56

103.46 (18.54)

9

95.44 (15.88)

7

83.00 (7.26)

8

72.00 (17.67)

283

102.19 (13.17)

10

91.00 (20.53)

25

79.36 (11.90)

11

97.27 (18.47)

Age

Years

115

10.94 (4.55)

17

11.06 (5.89)

28

8.59 (3.59)

27

9.92 (4.00)

369

29.73 (19.17)

24

30.08 (18.55)

53

27.83 (16.80)

37

28.00 (18.72)

SRS

Total raw score

76

26.36 (24.31)

13

77.85 (31.92)

15

57.93 (38.06)

23

90.13 (34.04)

279

30.09 (25.45)

20

87.00 (34.69)

28

60.39 (41.43)

30

94.27 (32.85)

IQ

PIQ

105

106.18 (11.73)

16

96.38 (17.82)

26

91.77 (14.59)

27

84.41 (21.22)

337

108.93 (12.24)

18

97.17 (17.71)

46

92.41 (13.44)

29

88.48 (15.65)