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Clawson, Ann; South, Mikle; Baldwin, Scott A.; Larson, Michael J. – Journal of Autism and Developmental Disorders, 2017
We examined the error-related negativity (ERN) as an endophenotype of ASD by comparing the ERN in families of ASD probands to control families. We hypothesized that ASD probands and families would display reduced-amplitude ERN relative to controls. Participants included 148 individuals within 39 families consisting of a mother, father, sibling,…
Descriptors: Pervasive Developmental Disorders, Autism, Statistical Analysis, Multiple Regression Analysis
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Baldwin, Scott A.; Murray, David M.; Shadish, William R. – Journal of Consulting and Clinical Psychology, 2005
When treatments are administered in groups, clients interact in ways that lead to violations of a key assumption of most statistical analyses-the assumption of independence of observations. The resulting dependencies, when not properly accounted for, can increase Type I errors dramatically. Of the 33 studies of group-administered treatment on the…
Descriptors: Statistical Analysis, Error Patterns, Clinical Psychology, Group Therapy