title: Test-retest reliability of the Frankfurt Complaint Questionnaire.
abstract: Long-term reliability of the Frankfurt Complaint Questionnaire (FCQ) was investigated in two follow-up studies of participants with psychosis using a test-retest method. In the first study (N = 56), the duration of the follow-up ranged from 6 months to 2 years; Spearman rho was .62 for the abridged (18 items) Spanish version of the questionnaire. In Study 2 (N = 21), in participants with stable schizophrenia, the follow-up ranged from 8 to 11 years; test-retest Spearman rho was .83 for the French version of the questionnaire. Subjective experiences could constitute, in psychosis-prone people, traits or markers of psychotic vulnerability.
authors.affiliation: University Department of Psychiatry, Centre Hospitalo-Universitaire (CHU) and Hôpital Pinel, Amiens, France. g.loas@ch-pinel.fr
authors.forename: Gwenolé
authors.initials: G
authors.lastname: Loas
authors.forename: Valerie
authors.initials: V
authors.lastname: Yon
authors.forename: Jean Louis
authors.initials: JL
authors.lastname: Monestès
authors.forename: Manuel J
authors.initials: MJ
authors.lastname: Cuesta
mesh_terms: D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000706:statistics & numerical data; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000523:psychology; D015203:Reproducibility of Results; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012569:Schizotypal Personality Disorder / Q000175:diagnosis* / Q000523:psychology; D011795:Surveys and Questionnaires