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Peer reviewedMatson, Johnny L.; Bamburg, Jay W. – Research in Developmental Disabilities, 1998
The initial psychometric properties of the Assessment for Dual Diagnosis (ADD), a new scale designed to screen for psychopathology in individuals with mild and moderate mental retardation, was examined. The ADD was found to have high stability across raters, high stability over time, and good internal consistency. (Author/DB)
Descriptors: Behavior Disorders, Clinical Diagnosis, Emotional Disturbances, Mild Mental Retardation
