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. Author manuscript; available in PMC: 2015 Sep 2.
Published in final edited form as: J Autism Dev Disord. 2014 Jan;44(1):75–89. doi: 10.1007/s10803-013-1853-4

Spontaneous Language Scores as Percentages of Total Utterances, ASD-HV

Visit 1 Visit 2 Visit 3 Visit 4 Visit 5 Visit 6
M (SD) M (SD) M (SD) M (SD) M (SD) M (SD)
MLUa 1.91 (0.72) 2.68* (1.24) 2.75 (0.86) 3.05 (0.98) 2.96 (0.92) 2.93 (0.65)
Total utterancesa 159.50** (34.46) 157.12 (44.57) 227.75 (79.03) 197.25 (45.53) 222.25 (86.45) 227.62 (61.73)
Nouns 47.08 (15.26) 49.21 (25.61) 43.55 (11.18) 48.15 (16.64) 39.50 (15.20) 37.56 (9.03)
Verbs 36.21* (27.61) 58.74** (30.48) 52.98 (20.06) 59.98 (27.02) 59.75 (27.75) 58.49 (18.23)
WhIPSyna 1.37 (1.59) 3.37 (2.32) 3.75 (2.81) 5.12 (2.99) 5.12 (3.98) 6.50 (3.29)
Brown’s 14 Morphemes
Progressive 1.96 (2.34) 2.53 (2.49) 3.07 (2.41) 6.00 (6.72) 6.42 (7.17) 5.21 (3.72)
In 1.02 (1.02) 2.76 (2.46) 2.79 (2.43) 2.97 (2.27) 3.21 (1.89) 1.57 (1.91)
On 0.51 (1.04) 0.99 (1.60) 1.65 (2.05) 2.01 (1.55) 1.87 (1.39) 2.01* (1.92)
Plural 8.61** (7.04) 2.03 (1.72) 6.16 (3.82) 7.01* (2.09) 5.09 (3.51) 5.09 (1.23)
Past irregular 0.32 (0.48) 1.32 (1.77) 2.54 (1.84) 1.38 (1.55) 2.29 (2.39) 2.15 (1.53)
Possessives 0.58 (1.14) 0.72 (1.22) 0.31 (0.52) 0.32 (0.90) 0.44 (0.48) 0.45 (0.77)
Uncontractible copula 0.46 (0.84) 1.55 (1.81) 1.72 (1.55) 2.94 (3.10) 2.86 (3.33) 2.46 (1.65)
Articles 5.75 (5.95) 21.41 (19.92) 17.59* (10.25) 22.98** (8.89) 18.55 (8.93) 15.80 (6.19)
Past regular 0.28 (0.44) 0.53* (0.55) 1.55* (1.33) 1.03 (1.63) 1.98 (2.62) 1.46 (1.23)
3rd person singular (-s) 0.50 (0.77) 0.94 (1.09) 1.30 (1.68) 1.93 (1.99) 2.41 (2.12) 1.70 (2.06)
3rd person irregular (-s) 0.15 (0.43) 0.35 (0.65) 0.76 (1.50) 0.70 (1.17) 1.16 (2.02) 0.66 (0.55)
Uncontractible auxiliary 0.00 (0.00) 0.14 (0.27) 0.74 (1.09) 0.59 (0.66) 1.14 (1.74) 0.87 (1.22)
Contractible copula 3.61 (5.25) 5.96 (4.41) 7.44 (4.04) 8.21 (5.19) 7.07 (6.32) 6.37 (3.92)
Contractible auxiliary 0.72 (1.46) 3.46* (2.80) 3.90 (3.45) 5.65 (5.52) 4.97 (5.73) 5.25 (4.51)
a

Represent actual scores

*

Shows significant differences between TD and ASD-HV groups. All significant differences show where ASD-HV group produced significantly more than the TD group. * <.05,

**

<.01.