Although comorbid or co-occurring psychiatric diagnoses such as attention deficit hyperactivity disorder, anxiety disorders, depression, and oppositional defiant or conduct disorders have been well studied in children or adolescents with autism spectrum disorders (ASDs), very little research is available on preschool samples. The current study…

The type and frequency of a variety of clerical errors were investigated in protocols from the 1949 and 1974 editions of the WISC. Potential consequences of such errors and a discussion of ways to lower the rate are presented. (Author)

Comparison of 26 hospitalized psychiatric youth with attention deficit-hyperactivity disorder (ADHD) with 27 similar youth without ADHD on the "Freedom from Distractibility" factor of the Wechsler Intelligence Scales for Children III found no significant intergroup differences, thus concluding that this factor is not a valid discriminant…

To examine the validity of short forms of the Wechsler Intelligence Scale for Children-Revised (WISC-R), the WISC-R was first administered to 106 hospitalized psychiatric patients, aged 8-16. No subjects had a primary diagnosis of mental retardation or learning disability, and one-third were receiving psychotropic medication. WISC-R IQ scores…