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. 1989 Nov;30(2):119-23.
doi: 10.1016/0165-1781(89)90153-4.

The Schedule for the Deficit syndrome: an instrument for research in schizophrenia

B Kirkpatrick  1 , R W Buchanan, P D McKenney, L D Alphs, W T Carpenter Jr
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The Schedule for the Deficit syndrome: an instrument for research in schizophrenia

B Kirkpatrick et al. Psychiatry Res. 1989 Nov.

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.

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