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On the measurement of delusions
Author(s) -
Walkup James
Publication year - 1990
Publication title -
british journal of medical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.102
H-Index - 62
eISSN - 2044-8341
pISSN - 0007-1129
DOI - 10.1111/j.2044-8341.1990.tb01631.x
Subject(s) - psychology , conviction , reliability (semiconductor) , delusion , measure (data warehouse) , test (biology) , value (mathematics) , psychometrics , cognitive psychology , social psychology , clinical psychology , psychiatry , statistics , paleontology , power (physics) , physics , mathematics , quantum mechanics , political science , computer science , law , biology , database
Garety (1985) analysed problems with existing definitions of delusions, focusing on the fixity and intensity of delusional beliefs. A quantitative method was proposed to evaluate with greater sensitivity the intensity of delusional conviction and its fixity over time. In this comment, three related points are raised about Garety's analysis and measure. None of the three challenges the fundamental usefulness or value of the measure, although potential problems are noted in the items used to check test‐retest reliability and in the wording of one of the two forms described.