How to compare scores from different depression scales: equating the Patient Health Questionnaire (PHQ) and the ICD-10-Symptom Rating (ISR) using Item Response Theory

A wide range of questionnaires for measuring depression are available. Item Response Theory models can help to evaluate the questionnaires exceeding the boundaries of Classical Test Theory and provide an opportunity to equate the questionnaires. In this study after checking for unidimensionality, a...

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Veröffentlicht in:	International journal of methods in psychiatric research 2011-12, Vol.20 (4), p.203-214
Hauptverfasser:	Fischer, H. Felix, Tritt, Karin, Klapp, Burghard F., Fliege, Herbert
Format:	Artikel
Sprache:	eng
Schlagworte:	Adolescent Adult Aged Aged, 80 and over Boundaries Classical test theory Data processing Depression Depression - diagnosis Depression - psychology depression self-rating scales equating Female Humans International Classification of Diseases Inventories ISR Item Response Theory Male Mathematical models Mental depression Middle Aged Models, Anatomic PHQ Psychiatric Status Rating Scales Psychometrics - methods Questionnaires Reproducibility of Results Statistics Surveys and Questionnaires Weights and Measures Young Adult
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