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首页> 外文期刊>Quality of life research: An international journal of quality of life aspects of treatment, care and rehabilitation >Suitability of the animated activity questionnaire for use as computer adaptive test: establishing the AAQ-CAT
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Suitability of the animated activity questionnaire for use as computer adaptive test: establishing the AAQ-CAT

机译：Suitability of the animated activity questionnaire for use as computer adaptive test: establishing the AAQ-CAT

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PurposeThe animated activity questionnaire (AAQ) is a computer-based measure of activity limitations. To answer a question, patients choose the animation of a person performing an activity that matches their own level of limitation. The AAQ has not yet been tested for suitability to be applied as computer-adaptive test (CAT). Thus, the objective of this study was to develop and evaluate an AAQ-based CAT to facilitate the application of the AAQ in daily clinical care.MethodsPatients (n = 1408) with hip/knee osteoarthritis from Brazil, Denmark, France, The Netherlands, Norway, Spain, and the UK responded to all 17 AAQ items. Assumptions of item-response theory (IRT) modelling were investigated. To establish item parameters for the CAT, a graded response model was estimated. To evaluate the performance of post-hoc simulated AAQ-based CATs, precision, test length, and construct validity (correlations with well-established measures of activity limitations) were evaluated.ResultsUnidimensionality (CFI = 0.95), measurement invariance (R-2-change .003) of the AAQ were supported. Performing simulated CATs, the mean test length was more than halved (= 0.95. Correlations of AAQ-CAT scores with patient-reported and performance measures of activity limitations were >= 0.60.ConclusionThe almost non-verbal AAQ-CAT is an innovative and efficient tool in patients with hip/knee osteoarthritis from various countries, measuring activity limitations with lower respondent burden, but similar precision and construct validity compared to the full AAQ.

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