Article

This study investigates the validity of a newly developed computerized cognitive
assessment system (CCAS) that is equipped with rich multimedia to generate
simulated testing situations and considers both test item difficulty and the test
taker's ability. It is also hypothesized that better predictive validity of the
CCAS in self-care of persons with stroke can be obtained. The CCAS has been
constructed and validated by an expert review panel. The system was pilot-tested
with 14 patients who had suffered a stroke and fulfilled specific selection
criteria. In addition, data on patients' performances in the Mini-Mental State
Examination (MMSE) and Neurobehavioral Cognitive State Examination (NCSE) or
Cognistat, Modified Barthel Index, Functional Test for the Hemiplegic Upper
Extremity were collected. Their demographic characteristics were also collected.
Correlation coefficients of the scores among the CCAS, MMSE, and NCSE were used
to show the concurrent validity of the former. With regard to the content
validity, the intraclass correlation coefficient [model 2, ICC(2,k)] among the
panel members was 0.972 with a P value of less than 0.01. The scores of the CCAS
correlate with MMSE (r = 0.676, P = 0.011) and with the four subtests of the NCSE
(repetition, naming, construction, and calculation). The content and concurrent
validity as well as the predictive abilities in self-care function of the CCAS
were initially established. The degree of the usefulness and accuracy of the new
computerized system in measuring the cognitive performance in persons with stroke
remains to be determined.

Langue : ANGLAIS