R K Bode1, A W Heinemann, P Semik. 1. Rehabilitation Services Evaluation Unit, Rehabilitation Institute of Chicago, Northwestern University Medical School, Chicago, Illinois 60611, USA.
Abstract
OBJECTIVES: To determine the measurement properties of the Galveston Orientation and Amnesia Test (GOAT) using the Rasch model and rating scale analysis (RSA). DESIGN: Calibration of data collected weekly during rehabilitation. SETTING: Six inpatient rehabilitation facilities. PARTICIPANTS: 77 patients admitted for their first rehabilitation after traumatic brain injury. RESULTS: Rescoring the items as dichotomies, three strata of posttraumatic amnesia (PTA) were identified. All items cohered to define a single construct and the item hierarchy confirmed their hypothesized ordering. CONCLUSIONS: Equal-interval measures of PTA were developed that exhibited good reliability and validity. A self-scoring key was developed to more efficiently assess PTA.
OBJECTIVES: To determine the measurement properties of the Galveston Orientation and Amnesia Test (GOAT) using the Rasch model and rating scale analysis (RSA). DESIGN: Calibration of data collected weekly during rehabilitation. SETTING: Six inpatient rehabilitation facilities. PARTICIPANTS: 77 patients admitted for their first rehabilitation after traumatic brain injury. RESULTS: Rescoring the items as dichotomies, three strata of posttraumatic amnesia (PTA) were identified. All items cohered to define a single construct and the item hierarchy confirmed their hypothesized ordering. CONCLUSIONS: Equal-interval measures of PTA were developed that exhibited good reliability and validity. A self-scoring key was developed to more efficiently assess PTA.
Authors: Jeffrey P Cuthbert; Cynthia Harrison-Felix; John D Corrigan; Jeneita M Bell; Juliet K Haarbauer-Krupa; A Cate Miller Journal: J Head Trauma Rehabil Date: 2015 May-Jun Impact factor: 2.710
Authors: Regina S Eum; Ronald T Seel; Richard Goldstein; Allen W Brown; Thomas K Watanabe; Nathan D Zasler; Elliot J Roth; Ross D Zafonte; Mel B Glenn Journal: J Neurotrauma Date: 2014-12-05 Impact factor: 5.269