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Table 3 Proportion looking to the correct object (accuracy), proportion looking to the face, and correlation data of children with ASD and their peers in each of the four conditions

From: Read my lips! Perception of speech in noise by preschool children with autism and the impact of watching the speaker’s face

 

Comparison with age-matched controls

 

Comparison with language age-matched controls

 

Children with ASD

CA controls

Statistical comparison

 

Children with ASD

LA controls

Statistical comparison

Proportion accuracy, NoFace-Quiet

66.3%

68.1%

t (16) = 0.38, p = 0.71

 

66.7%

70.2%

t (12) = 0.77, p = 0.46

Proportion accuracy, NoFace-Noise

62.8%

64.9%

t (16) = 0.64, p = 0.53

 

62.3%

64.7%

t (12) = 0.64, p = 0.54

Proportion accuracy, Face-Quiet

58.6%

68.9%

t (16) = 1.86, p = 0.08

 

58.1%

68.1%

t (12) = 1.54, p = 0.15

Proportion accuracy, Face-Noise

61.1%

67.4%

t (16) = 1.24, p = 0.23

 

64.3%

65.3%

t (12) = 0.19, p = 0.85

Looking to face, quiet

18.83 s

19.15 s

t (16) = 0.12, p = 0.90

 

19.45 s

19.71 s

t (12) = 0.05, p = 0.96

Looking to face, noise

19.34 s

18.53 s

t (12) = 0.38, p = 0.71

 

20.61 s

18.37 s

t (12) = 0.92, p = 0.37

Correlation, face looking and accuracy in quiet

0.13

0.19

  

0.05

0.36

 

Correlation, face looking and accuracy in noise

0.63*

0.08

  

0.59*

0.20

 
  1. Note that in NoFace conditions, there are only two objects on the screen, and chance is thus 50%; in the Face conditions, there are three places on the screen that children can look at, and thus the base rate is 33%