The positive/negative symptom distinction in psychoses a replication and extension of previous findings

Elaine F. Walker, Philip D. Harvey, Debra Perlman

Research output: Contribution to journalArticle

28 Scopus citations


The independence and internal consistency of Andreasen's positive and negative symptom scales was found to be good for schizophrenics but not for a comparison group of manic patients, supporting the assumption that the symptom distinction is diagnosis specific. Discriminant function analysis revealed that ratings of positive and negative symptoms are capable of predicting diagnostic category for the two groups with a high degree of accuracy.

Original languageEnglish (US)
Pages (from-to)359-363
Number of pages5
JournalJournal of Nervous and Mental Disease
Issue number6
StatePublished - Jun 1988


ASJC Scopus subject areas

  • Psychiatry and Mental health

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