Validierung der computeradaptiven Assessmentprozedur RehaCAT hinsichtlich funktionaler und psychischer Belastungen bei Rehabilitanden mit muskuloskelettalen Erkrankungen

Abstract

The Rasch-based, computerized adaptive assessment procedure RehaCAT allows to assess the ICF-oriented dimensions "activities in daily living", "functionality upper extremities" and "functionality lower extremities" as well as "depression" economically and reliably in orthopaedic rehabilitation patients. This validation study aimed at analyzing the multivariate association of the RehaCAT dimensions with the commonly applied ODI, SF-12 and HADS-D assessment scales in a sample of rehabilitation patient suffering from musculoskeletal diseases (spine disease: 58,7%). By means of structural equation modeling high convergent and divergent validity of the RehaCAT dimensions could be proven in a sample of N=184 rehabilitation patients (71,2% inpatient and 28,8% outpatient). In the resulting model between 41% (functionality upper extremities) and 76% (activities in daily living) of the RehaCAT dimensions could be explained mainly by the theoretical assumed predictor constructs. Because of its psychometric foundation, economy and validity, the RehaCAT provides an optimal basis to assess central ICF-oriented constructs in orthopaedic rehabilitation.

Calibration of an item bank in 474 orthopedic patients using Rasch analysis for computer-adaptive assessment of anxiety

“…52,53 Moreover, AIB-ortho builds a further puzzle for a comprehensive psychodiagnostics in orthopedic and cardiovascular patients using RehaCAT with its already established IRT and CAT dimensions depression, activity in daily living and work capacity as well as the parallel to this study developed item bank on patients’ treatment motivation. 19,27,45,47,49–54,55…”

“…In CAT applications, it should be ensured that LD items are never presented to the same person. The number of items is fully sufficient for using it to develop specific assessment tools such as CATs 27,47,[49][50][51] and anxiety short forms. 52,53 A CAT adapts questions based on previously given answers.…”

Psychological factors outmatched morphological markers in predicting limitations in activities of daily living and participation in patients with lumbar stenosis

“…ADLs were measured using a paper-pencil version of the Rasch-based RehaCAT-system [27]. RehaCAT assesses three aspects of ADL: (1) lower extremity functioning (RehaCAT-LE, e.g.…”

Angst-Screening bei kardiologischen Rehabilitanden: Übereinstimmungsvalidität und Cut-Off-Werte des ACAT-cardio

“…Trotz vieler Vorteile liegen für den klinischen Einsatz bislang erst wenige CATs vor, was nicht zuletzt an dem hohen zeitlichen Aufwand für die Konstruktion einer Itembank und die empirische Überprüfung des Modells liegt [20]. Ein CAT, der im Rahmen des Projekts RehaCAT [21] speziell für das Screening von Angst bei kardiologischen Rehabilitanden entwickelt wurde, ist der ACATcardio (CAT for the assessment of anxiety in cardiovascular rehabilitation patients) von Abberger et al [22]. In Bezug auf die psychometrische Güte konnten die Konstruktvalidität des CAT [22] und die Inhaltsvalidität der zugrunde liegenden Itembank AIBcardio (anxiety item bank for cardiovascular patients) [23]…”