An evaluation of patient-reported outcomes found computerized adaptive testing was efficient in assessing stress perception.
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An evaluation of patient-reported outcomes found computerized adaptive testing was efficient in assessing stress perception. / Kocalevent, Rüya-Daniela; Rose, Matthias; Becker, Janine; Walter, Otto B; Fliege, Herbert; Bjorner, Jakob B; Kleiber, Dieter; Klapp, Burghard F.
In: J CLIN EPIDEMIOL, Vol. 62, No. 3, 3, 2009, p. 1-3, 278-287.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - An evaluation of patient-reported outcomes found computerized adaptive testing was efficient in assessing stress perception.
AU - Kocalevent, Rüya-Daniela
AU - Rose, Matthias
AU - Becker, Janine
AU - Walter, Otto B
AU - Fliege, Herbert
AU - Bjorner, Jakob B
AU - Kleiber, Dieter
AU - Klapp, Burghard F
PY - 2009
Y1 - 2009
N2 - OBJECTIVES: This study aimed to develop and evaluate a first computerized adaptive test (CAT) for the measurement of stress perception (Stress-CAT), in terms of the two dimensions: exposure to stress and stress reaction. STUDY DESIGN AND SETTING: Item response theory modeling was performed using a two-parameter model (Generalized Partial Credit Model). The evaluation of the Stress-CAT comprised a simulation study and real clinical application. A total of 1,092 psychosomatic patients (N1) were studied. Two hundred simulees (N2) were generated for a simulated response data set. Then the Stress-CAT was given to n=116 inpatients, (N3) together with established stress questionnaires as validity criteria. RESULTS: The final banks included n=38 stress exposure items and n=31 stress reaction items. In the first simulation study, CAT scores could be estimated with a high measurement precision (SE0.90) using 7.0+/-2.3 (M+/-SD) stress reaction items and 11.6+/-1.7 stress exposure items. The second simulation study reanalyzed real patients data (N1) and showed an average use of items of 5.6+/-2.1 for the dimension stress reaction and 10.0+/-4.9 for the dimension stress exposure. Convergent validity showed significantly high correlations. CONCLUSIONS: The Stress-CAT is short and precise, potentially lowering the response burden of patients in clinical decision making.
AB - OBJECTIVES: This study aimed to develop and evaluate a first computerized adaptive test (CAT) for the measurement of stress perception (Stress-CAT), in terms of the two dimensions: exposure to stress and stress reaction. STUDY DESIGN AND SETTING: Item response theory modeling was performed using a two-parameter model (Generalized Partial Credit Model). The evaluation of the Stress-CAT comprised a simulation study and real clinical application. A total of 1,092 psychosomatic patients (N1) were studied. Two hundred simulees (N2) were generated for a simulated response data set. Then the Stress-CAT was given to n=116 inpatients, (N3) together with established stress questionnaires as validity criteria. RESULTS: The final banks included n=38 stress exposure items and n=31 stress reaction items. In the first simulation study, CAT scores could be estimated with a high measurement precision (SE0.90) using 7.0+/-2.3 (M+/-SD) stress reaction items and 11.6+/-1.7 stress exposure items. The second simulation study reanalyzed real patients data (N1) and showed an average use of items of 5.6+/-2.1 for the dimension stress reaction and 10.0+/-4.9 for the dimension stress exposure. Convergent validity showed significantly high correlations. CONCLUSIONS: The Stress-CAT is short and precise, potentially lowering the response burden of patients in clinical decision making.
M3 - SCORING: Zeitschriftenaufsatz
VL - 62
SP - 1-3, 278-287
JO - J CLIN EPIDEMIOL
JF - J CLIN EPIDEMIOL
SN - 0895-4356
IS - 3
M1 - 3
ER -
