title: The tripartite model for assessing symptoms of anxiety and depression: psychometrics of the Dutch version of the mood and anxiety symptoms questionnaire.
abstract: OBJECTIVE
  The tripartite model conceptualizes symptoms of depression and anxiety in three groups: low positive affect and anhedonia, which is specific to depression, somatic arousal, which is unique to anxiety, and nonspecific general distress. The Mood and Anxiety Symptoms Questionnaire (MASQ) was developed to measure these symptom domains. This study reports on the psychometric properties of the Dutch translation of the MASQ.
  
  
  METHODS
  The questionnaire was completed by a population-based sample and by patients with anxiety and/or mood disorders. Scores of these respondent groups were compared to assess the discriminant validity of the MASQ and evaluate the appropriateness of the tripartite model.
  
  
  RESULTS
  The psychometric properties of the translated MASQ were highly satisfactory. In accordance with the model, we found the MASQ to comprise three main scales, which discriminate well between subgroups of patients with mood and anxiety disorders.
  
  
  CONCLUSIONS
  Overall, like the English version the Dutch translation of the instrument appears to be a reliable and valid measure of symptoms of depression and anxiety, conceptualized as comprising three groups of symptoms. The Dutch MASQ is better able to distinguish unique aspects of mood and anxiety disorders than other self-report instruments.
authors.affiliation: Department of Psychiatry, Leiden University Medical Center, (LUMC), PO Box 9300, 2300 RC Leiden, The Netherlands. e.de_beurs@lumc.nl
authors.forename: E
authors.initials: E
authors.lastname: de Beurs
authors.forename: M E
authors.initials: ME
authors.lastname: den Hollander-Gijsman
authors.forename: S
authors.initials: S
authors.lastname: Helmich
authors.forename: F G
authors.initials: FG
authors.lastname: Zitman
mesh_terms: D000293:Adolescent; D000328:Adult; D000339:Affect; D000368:Aged; D001007:Anxiety / Q000523:psychology*; D003863:Depression / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008960:Models, Psychological; D009426:Netherlands; D011594:Psychometrics / Q000379:methods; D015203:Reproducibility of Results; D012647:Self-Assessment; D013001:Somatoform Disorders / Q000523:psychology; D011795:Surveys and Questionnaires