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The paranoid quotient A BPRS ratio for exploring subtypes in schizophrenia
Author(s) -
Karson C. N.,
Bigelow L.
Publication year - 1986
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1111/j.1600-0447.1986.tb02663.x
Subject(s) - paranoia , quotient , paranoid schizophrenia , psychology , paranoid disorders , schizophrenia (object oriented programming) , psychiatry , population , intelligence quotient , rating scale , brief psychiatric rating scale , clinical psychology , psychosis , medicine , developmental psychology , mathematics , cognition , environmental health , pure mathematics
A paranoid quotient developed from two items of the Brief Psychiatric Rating Scale, suspiciousness and disorganized speech, is presented as a novel method for estimating the degree of paranoia of chronic schizophrenic patients. The mean quotient for paranoid schizophrenic patients was 70 which significantly exceeded that of non‐paranoid patients (mean quotient = 47. P < 0.002). This difference proved more discriminatory than that obtained by examining the constituent items alone. Hence, the quotient strategy offers a promising way to quantify paranoid symptoms in a population of patients in whom diagnostic subtyping is often difficult.