title: Validation of the Hebrew and Arabic Versions of the Outcome Questionnaire (OQ-45).
abstract: BACKGROUND
  Measuring the progress of mental health treatment aids in assessment and monitoring of psychotherapeutic outcomes. The OQ-45 is a widely accepted measure of such outcomes. The aim of this study was to validate the Hebrew and Arabic versions of the OQ-45.
  
  
  METHODS
  Data were collected from three samples: non patient university students (n=189), university mental health clinic patients (n=37), and outpatient mental health clinic patients (n=135). Subjects completed the OQ-45 as well as the BSI and PHQ-9 questionnaires.
  
  
  RESULTS
  Test-retest and internal reliability, and concurrent and discriminative validity of both OQ-45 versions were satisfactory. Sensitivity of the Hebrew and Arabic versions was 0.70 and 0.80, respectively, and the specificity was 0.69and 0.93, respectively. Sensitivity-to-change was noted only for the Symptom Distress (SD) subscale.
  
  
  CONCLUSIONS
  Sensitivity-to-change was not demonstrated for the total OQ-45, possibly due to a too-short follow-up period.
  
  
  CONCLUSIONS
  Adequate psychometric properties of the Hebrew and Arabic OQ-45 suggest that they can serve as useful measures of mental health treatment in Israel.Further research is necessary to confirm norms, cut-off scores and sensitivity-to-change using a larger representative population and diverse types of treatment over a longer period of time.
authors.affiliation: Sheba Medical Center, Tel Hashomer, and Department of Epidemiology and Preventive Medicine, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel.
authors.forename: Raz
authors.initials: R
authors.lastname: Gross
authors.affiliation: Gertner Institute for Epidemiology and Health Policy Research, Tel Hashomer, Israel.
authors.forename: Saralee
authors.initials: S
authors.lastname: Glasser
authors.affiliation: Mental Health Services, Ministry of Health, Jerusalem, Israel.
authors.forename: David
authors.initials: D
authors.lastname: Elisha
authors.affiliation: The Hebrew University, Jerusalem, Israel.
authors.forename: Orya
authors.initials: O
authors.lastname: Tishby
authors.affiliation: Gertner Institute for Epidemiology and Health Policy Research, Tel Hashomer, Israel.
authors.forename: Daria
authors.initials: D
authors.lastname: Madar Jacobson
authors.affiliation: Gertner Institute for Epidemiology and Health Policy Research, Tel Hashomer, Israel.
authors.forename: Gila
authors.initials: G
authors.lastname: Levitan
authors.affiliation: Brigham Young University, Provo, Utah, U.S.A.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Lambert
authors.affiliation: Mental Health Services, Ministry of Health, Jerusalem, Israel.
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Ponizovsky
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007557:Israel; D008297:Male; D017063:Outcome Assessment, Health Care / Q000379:methods*; D011594:Psychometrics / Q000295:instrumentation*; D011613:Psychotherapy / Q000592:standards*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult