Date of Award


Document Type


Degree Name

Doctor of Psychology (PsyD)


Graduate Department of Clinical Psychology


Sixty-nine severely and profoundly retarded ambulatory clients in a residential setting were administered the Diagnostic Assessment for the Severely Handicapped (DASH) Scale. Three groups of 23 were selected based on previous psychiatric diagnosis and matched for social age. The first group contained clients with a diagnosis of bipolar disorder; the second group contained a mix of non-affective psychiatric diagnoses; and the third group included participants with no psychiatric diagnosis. Six one way analyses of variance were conducted. All were significant. Post hoc analyses showed that the DASH effectively discriminated bipolar-disordered participants from those with no psychiatric diagnosis, but not those with other types of psychiatric DASH disorders. The DASH appears useful as an adjunct to other diagnostic techniques. It especially seems promising if employed prior to the introduction of psychotropic medication. Future studies are needed to determine the ability of the DASH to differentially diagnose among other specific psychiatric disorders.

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