title: Dimensional structure of the Frankfurt Complaint Questionnaire.
abstract: The Frankfurt Complaint Questionnaire (FCQ) was designed to evaluate the subjective symptoms of schizophrenics. Several validation studies of the FCQ using principal components analyses (PCA) have shown one-, two-, or four-factor solutions. The present study was conducted using FCQ data on 310 schizophrenics who met the ICD-10 criteria for F20 (schizophrenia) disorder. Using several guidelines to select the number of factors, the PCA yielded one factor. This result suggests a unidimensionality underlying FCQ items. A new scale comprising 24 items was derived from those items with higher weights in the first factor.
authors.affiliation: University Department of Psychiatry, Pinel's Hospital, Amiens, France.
authors.forename: Gwenolé
authors.initials: G
authors.lastname: Loas
authors.forename: Valérie
authors.initials: V
authors.lastname: Yon
authors.forename: Denis
authors.initials: D
authors.lastname: Brien
mesh_terms: D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D012565:Schizophrenic Psychology; D011795:Surveys and Questionnaires