Analysis of intelligence structure and characteristics in children with autism spectrum disorder.

LIN Li-zi; DAI Mei-xia; XIAO Qi-peng; LIANG Jing-jing; LIU Bu-yun; JING Jin

doi:10.11852/zgetbjzz2016-24-09-04

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Chinese Journal of Child Health Care ›› 2016, Vol. 24 ›› Issue (9) : 906-909. DOI: 10.11852/zgetbjzz2016-24-09-04

Analysis of intelligence structure and characteristics in children with autism spectrum disorder.

LIN Li-zi, DAI Mei-xia, XIAO Qi-peng, LIANG Jing-jing, LIU Bu-yun, JING Jin

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Abstract

Objective To explore the intelligence structure in children with autism spectrum disorder (ASD). Methods With the Chinese version of Wechsler Intelligence Scale for Children-Fourth Edition (WISC-Ⅳ),The intelligence in a sample including 50 ASD children and 50 control children were tested.The different dimensions of intelligence in WISC-Ⅳ were compared between ASD and control groups and the fitness of the WSIC-Ⅳ structure was also examined in ASD children. Results The working memory index showed no differences between ASD and control groups (P=0.077),and the processing speed index was the worst in ASD children[P<0.001,(88.54±13.23) vs (103.80±13.94)].The full scale intelligence quotient and other dimensions of WISC-Ⅳ in ASD children were lower significantly compared with typical children (P<0.05).Significant strengths of ASD children were observed on working memory with a percentage of 44% compared with processing speed (χ²=6.618,P=0.010).Confirmatory factor analysis suggested that the intelligence structure of WISC-Ⅳ provided moderate fit in ASD children.The statistical model of intelligence structure was rebuild in the ASD sample because the χ² statistic didn't achieve ideal condition (P=0.030),but the new model was impractical. Conclusions The intelligence of ASD children is in normal range but lower than control children.ASD children show strengths on working memory and weakness on processing speed.Further studies investigating a best intelligence structure in ASD children are needed.

Key words

autism spectrum disorder / intelligence structure / working memory / processing speed

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LIN Li-zi, DAI Mei-xia, XIAO Qi-peng, LIANG Jing-jing, LIU Bu-yun, JING Jin. Analysis of intelligence structure and characteristics in children with autism spectrum disorder.[J]. Chinese Journal of Child Health Care. 2016, 24(9): 906-909 https://doi.org/10.11852/zgetbjzz2016-24-09-04

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