Development and evaluation of a computer adaptive test for 'Anxiety' (Anxiety-CAT).
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Development and evaluation of a computer adaptive test for 'Anxiety' (Anxiety-CAT). / Walter, Otto B; Becker, Janine; Bjorner, Jakob B; Fliege, Herbert; Klapp, Burghard F; Rose, Matthias.
in: QUAL LIFE RES, Jahrgang 16, Nr. 1, 1, 2007, S. 143-155.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Development and evaluation of a computer adaptive test for 'Anxiety' (Anxiety-CAT).
AU - Walter, Otto B
AU - Becker, Janine
AU - Bjorner, Jakob B
AU - Fliege, Herbert
AU - Klapp, Burghard F
AU - Rose, Matthias
PY - 2007
Y1 - 2007
N2 - Within the framework of item response theory (IRT), we developed a German version of an item bank, as well as a software application that can be employed to measure anxiety by means of a computer adaptive test (CAT). A sample of n = 2348 psychiatric and psychosomatic patients answered a set of up to 13 standardized questionnaires. 81 items drawn from these questionnaires were considered pertinent to the anxiety construct. Various tests were conducted to ensure the suitability of these items for an IRT-based assessment. After these tests, 50 items remained in the item bank and were calibrated using the Generalized Partial Credit Model. Simulation studies conducted on an independent sample of n = 1528 respondents indicate that 6-8 items suffice to measure the latent trait with high precision (standard error
AB - Within the framework of item response theory (IRT), we developed a German version of an item bank, as well as a software application that can be employed to measure anxiety by means of a computer adaptive test (CAT). A sample of n = 2348 psychiatric and psychosomatic patients answered a set of up to 13 standardized questionnaires. 81 items drawn from these questionnaires were considered pertinent to the anxiety construct. Various tests were conducted to ensure the suitability of these items for an IRT-based assessment. After these tests, 50 items remained in the item bank and were calibrated using the Generalized Partial Credit Model. Simulation studies conducted on an independent sample of n = 1528 respondents indicate that 6-8 items suffice to measure the latent trait with high precision (standard error
M3 - SCORING: Zeitschriftenaufsatz
VL - 16
SP - 143
EP - 155
JO - QUAL LIFE RES
JF - QUAL LIFE RES
SN - 0962-9343
IS - 1
M1 - 1
ER -
