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Hall, Scott S.; Burns, David D.; Lightbody, Amy A.; Reiss, Allan L. – Journal of Abnormal Child Psychology, 2008
Structural equation modeling (SEM) was used to examine the development of intellectual functioning in 145 school-age pairs of siblings. Each pair included one child with Fragile X syndrome (FXS) and one unaffected sibling. All pairs of children were evaluated on the Wechsler Intelligence Scale for Children-Third Edition (WISC-III) at time 1 and 80…
Descriptors: Intellectual Development, Siblings, Structural Equation Models, Mental Retardation