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The Schedule for the Deficit syndrome: an instrument for research in schizophrenia
B Kirkpatrick1, R W Buchanan, P D McKenney
1Department of Psychiatry, University of Maryland School of Medicine, Baltimore.
Psychiatry Research
|November 1, 1989
Abstract:
The Schedule for the Deficit Syndrome (SDS) is an instrument for categorizing schizophrenic patients into those with and those without the deficit syndrome. In a study of 40 schizophrenic patients diagnosed by DSM-III criteria, raters using the SDS demonstrated good interrater reliability for this categorization, as well as for individual negative symptoms and a rating of global severity.