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Dykens, Elisabeth M. – American Journal on Mental Retardation, 1995
This paper considers key properties of behavioral phenotypes of mental retardation syndromes, including within-syndrome variability and between-syndrome similarities and qualitative differences. The "new genetics" research requires combining data from three strategies: (1) a psychiatric approach, (2) psychometric methods, and (3) syndrome-specific…
Descriptors: Behavior Patterns, Behavioral Science Research, Genetics, Mental Retardation
Hodapp, Robert M.; Dykens, Elisabeth M. – American Journal on Mental Retardation, 2001
This article examines the status of behavioral research on genetic mental retardation syndromes and finds that the field continues to struggle with three methodological issues: (1) how to think about control or contrast groups, (2) the interplay of behavioral phenotypes with development and other within-group variations, and (3) the efficacy of…
Descriptors: Adults, Behavior Patterns, Behavioral Science Research, Children
