%0 Journal Article %J Stroke Rehabilitation %D 2004 %T Computer adaptive testing: a strategy for monitoring stroke rehabilitation across settings %A Andres, P. L. %A Black-Schaffer, R. M. %A Ni, P. %A Haley, S. M. %K *Computer Simulation %K *User-Computer Interface %K Adult %K Aged %K Aged, 80 and over %K Cerebrovascular Accident/*rehabilitation %K Disabled Persons/*classification %K Female %K Humans %K Male %K Middle Aged %K Monitoring, Physiologic/methods %K Severity of Illness Index %K Task Performance and Analysis %X Current functional assessment instruments in stroke rehabilitation are often setting-specific and lack precision, breadth, and/or feasibility. Computer adaptive testing (CAT) offers a promising potential solution by providing a quick, yet precise, measure of function that can be used across a broad range of patient abilities and in multiple settings. CAT technology yields a precise score by selecting very few relevant items from a large and diverse item pool based on each individual's responses. We demonstrate the potential usefulness of a CAT assessment model with a cross-sectional sample of persons with stroke from multiple rehabilitation settings. %B Stroke Rehabilitation %7 2004/05/01 %V 11 %P 33-39 %8 Spring %@ 1074-9357 (Print) %G eng %M 15118965 %0 Journal Article %J American Journal of Occupational Therapy %D 1999 %T The use of Rasch analysis to produce scale-free measurement of functional ability %A Velozo, C. A. %A Kielhofner, G. %A Lai, J-S. %K *Activities of Daily Living %K Disabled Persons/*classification %K Human %K Occupational Therapy/*methods %K Predictive Value of Tests %K Questionnaires/standards %K Sensitivity and Specificity %X Innovative applications of Rasch analysis can lead to solutions for traditional measurement problems and can produce new assessment applications in occupational therapy and health care practice. First, Rasch analysis is a mechanism that translates scores across similar functional ability assessments, thus enabling the comparison of functional ability outcomes measured by different instruments. This will allow for the meaningful tracking of functional ability outcomes across the continuum of care. Second, once the item-difficulty order of an instrument or item bank is established by Rasch analysis, computerized adaptive testing can be used to target items to the patient's ability level, reducing assessment length by as much as one half. More importantly, Rasch analysis can provide the foundation for "equiprecise" measurement or the potential to have precise measurement across all levels of functional ability. The use of Rasch analysis to create scale-free measurement of functional ability demonstrates how this methodlogy can be used in practical applications of clinical and outcome assessment. %B American Journal of Occupational Therapy %V 53 %P 83-90 %G eng %M 9926224