Presence of Contagious Yawning in Children with Autism Spectrum Disorder

Table 2

Mean, standard deviation (SD) and range of chronological age, and scores on the Japanese version of the Autism Screening Questionnaire (ASQ-J) of participants in Experiment 2.

	Age (years)	ASQ-J
TD (𝑛=29)*
M (SD)	12.7 (2.4)	2.3 (2.4)
Range	9.8–17.9	0–7
ASD (𝑛=22)*
M (SD)	14.2 (3.7)	22.4 (4.7)
Range	7.7–19.8	14–31

∗In Experiment 2, the Japanese WISC-III and WAIS-R were not administered because IQ did not influence contagious yawning in Experiment 1.