Rating scale analysis of the Neurobehavioral Cognitive Status Examination
Doninger, N.A.; Bode, R.K.; Heinemann, A.W.; Ambrose, C.
Journal of Head Trauma Rehabilitation 15(1): 683-695
ISSN/ISBN: 0885-9701 PMID: 10745184 DOI: 10.1097/00001199-200002000-00007
Evaluate the measurement properties of the Neurobehavioral Cognitive Status Examination (NCSE) using rating scale analysis. Calibration of item responses collected as part of a study examining characteristics of case-management programs and treatment outcomes. Three outpatient rehabilitation facilities. Convenience sample of 186 community-dwelling adults with TBI. Several rating scale analyses were performed to construct a unidimensional measure. Deletion of easy and misfitting items created a better targeted test (generated more spread among individuals) without increased error. If used with a community-based sample, three strata can be differentiated despite a skewed distribution. Recommended applications are with samples with considerably more cognitive impairment.