Abstract Objective To investigate the features of intellectual development in children with language disorder. Methods The developmental quotients (DQs) of motor, object, language and social abilities were evaluated in 300 children with language disorder by Gesell Developmental Schedules. Results All the 300 children had normal mean DQs of motor ability and lower mean DQs of object, language, and social abilities. Of all children, 31.0% had abnormal motor ability, 49.0% had abnormal object ability, and 52.7% had abnormal social ability. The DQ of language ability was significantly positively correlated with the DQs of the other three abilities (r=0.506, 0.644, and 0.711 respectively, P < 0.01). Conclusions Children with language disorder may have abnormal motor ability, adaptive behavior, and personal-social behavior. Diagnostic intellectual development evaluation and comprehensive intervention for other developmental abnormalities should be performed for these children.
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