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Evaluation of a computer-adaptive test for the assessment of depression (D-CAT) in clinical application
International journal of methods in psychiatric research, 2009-03, Vol.18 (1), p.23-36
Fliege, Herbert
Becker, Janine
Walter, Otto B.
Rose, Matthias
Bjorner, Jakob B.
Klapp, Burghard F.
2009
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Fliege, Herbert
Becker, Janine
Walter, Otto B.
Rose, Matthias
Bjorner, Jakob B.
Klapp, Burghard F.
Titel
Evaluation of a computer-adaptive test for the assessment of depression (D-CAT) in clinical application
Ist Teil von
International journal of methods in psychiatric research, 2009-03, Vol.18 (1), p.23-36
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2009
Quelle
Psychology & Behavioral Sciences Collection
Beschreibungen/Notizen
In the past, a German Computerized Adaptive Test, based on Item Response Theory (IRT), was developed for purposes of assessing the construct depression [Computer‐adaptive test for depression (D‐CAT)]. This study aims at testing the feasibility and validity of the real computer‐adaptive application. The D‐CAT, supplied by a bank of 64 items, was administered on personal digital assistants (PDAs) to 423 consecutive patients suffering from psychosomatic and other medical conditions (78 with depression). Items were adaptively administered until a predetermined reliability (r ≥ 0.90) was attained. For validation purposes, the Hospital Anxiety and Depression Scale (HADS), the Centre for Epidemiological Studies Depression (CES‐D) scale, and the Beck Depression Inventory (BDI) were administered. Another sample of 114 patients was evaluated using standardized diagnostic interviews [Composite International Diagnostic Interview (CIDI)]. The D‐CAT was quickly completed (mean 74 seconds), well accepted by the patients and reliable after an average administration of only six items. In 95% of the cases, 10 items or less were needed for a reliable score estimate. Correlations between the D‐CAT and the HADS, CES‐D, and BDI ranged between r = 0.68 and r = 0.77. The D‐CAT distinguished between diagnostic groups as well as established questionnaires do. The D‐CAT proved an efficient, well accepted and reliable tool. Discriminative power was comparable to other depression measures, whereby the CAT is shorter and more precise. Item usage raises questions of balancing the item selection for content in the future. Copyright © 2009 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 1049-8931
eISSN: 1557-0657
DOI: 10.1002/mpr.274
Titel-ID: cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_6878570
Format
–
Schlagworte
Adolescent
,
Adult
,
Aged
,
Computer Systems
,
computer-adaptive testing
,
depression
,
Depression - diagnosis
,
Depression - psychology
,
diagnostic assessment
,
Discriminant Analysis
,
Female
,
Humans
,
item response theory
,
Male
,
Middle Aged
,
Patient Compliance
,
Psychometrics - methods
,
Psychometrics - standards
,
Psychometrics - statistics & numerical data
,
questionnaire
,
Reproducibility of Results
,
Retrospective Studies
,
Statistics, Nonparametric
,
Surveys and Questionnaires
,
Young Adult
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