The consistency of C-WISC and WISC-Ⅳ in diagnostic mental retardation in children / 中华行为医学与脑科学杂志

ABSTRACT

Objective To compare the difference between C-WISC and WISC-Ⅳ in the diagnosis of IQ in the children diagnosed with mental retardation(MR) or borderline intellectual funcition(BIF).Methods 80 children aged 6-16 years were enrolled in this study.All of them were diagnosed with MR or BIF based on the criteria of DSM-Ⅳ-R.Then,C-WISC and WISC-Ⅳ were used to measure the IQ.Results There was no significant difference in the scores of full IQ between C-WISC and WISC-Ⅳ in these children ((65.49±12.83) vs (64.86±10.10),t=-0.591,P＞0.05).The score of verbal intelligence quotient in the C-WISC was significantly lower than the corresponding score in the WISC-Ⅳ ((64.96± 13.14) vs (68.26 ± 10.99),t=3.029,P＜0.05).The score of performance intelligence quotient in the C-WISC was significantly higher than the corresponding score in the WISC-Ⅳ ((72.48±14.04) vs (69.35±11.75),t=-2.488,P＜0.05).The scores of similarities,coding,and block design in the C-WISC were significantly higher than the corresponding score in the WISC-Ⅳ (P＜0.05)).There was no significant difference in the scores of comprehension and digit span between the two methods (P＞0.05).There was also no significant difference in MR hierarchical diagnosis between the two methods (x2=0.427,P9＞0.05).Conclusion There is no significant difference between C-WISC and WISC-Ⅳ in the diagnosis of IQ in the children aged 6-16 years who were diagnosed with MR or BIF.Both C-WISC and WISC-Ⅳ can be used to diagnose the MR and marginal intelligence for the children aged 6-16 years.