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Research Article  |   September 2002
Categorization and Deductive Reasoning: Predictors of Instrumental Activities of Daily Living Performance in Adults With Brain Injury
Author Affiliations
  • Yael Goverover, PhD, OT, is Teaching Assistant, New York University, 35 West 4th Street, New York, New York 10012; yg243@nyu.edu
  • Jim Hinojosa, PhD, OT, FAOTA, is Professor, New York University
Article Information
Neurologic Conditions / Rehabilitation, Participation, and Disability / Traumatic Brain Injury / Assessment and Stroke
Research Article   |   September 2002
Categorization and Deductive Reasoning: Predictors of Instrumental Activities of Daily Living Performance in Adults With Brain Injury
American Journal of Occupational Therapy, September/October 2002, Vol. 56, 509-516. doi:10.5014/ajot.56.5.509
American Journal of Occupational Therapy, September/October 2002, Vol. 56, 509-516. doi:10.5014/ajot.56.5.509
Abstract

OBJECTIVE. The purpose of this study was to examine the predictive relationship of categorization and deductive reasoning abilities to performance of instrumental activities of daily living (IADL) among adults with brain injury.

METHOD. A correlational research design was used to examine the performance of 19 patients from a neurosurgery acute care unit on Toglia’s Category Assessment (TCA), the Deductive Reasoning test (DR), and the Observed Tasks of Daily Living–Revised.

RESULTS. Multiple regression analysis indicated that categorization and deductive reasoning accounted for a significant proportion of the variance in IADL performance scores, with deductive reasoning making the greater contribution. Demographic characteristics such as age and education reduced the power of the previous variables, especially of the categorization.

CONCLUSION. The results of this study indicate that assessments of categorization and deductive reasoning abilities of persons with brain injury may be good predictors of IADL functional performance. Results support the use of the TCA and DR as quick measures of a person’s cognitive and functional abilities. Furthermore, this study provides preliminary results to support that categorization and deductive reasoning abilities are fundamental for the performance of IADL skills.