Measuring self-reported physical function in individuals with TBI: Development of the TBI-QOL mobility and upper extremity item banks and short forms

Model System:

TBI

Reference Type:

Journal article

Accession No.:

J81978

Journal:

Journal of Head Trauma Rehabilitation

Year, Volume, Issue, Page(s):

2019 , 34, 5, 340-352

Publication Website:

Abstract:

Study developed and evaluated the use of computer adaptive tests (CATs) to administer the Mobility and Upper Extremity item banks from the Traumatic Brain Injury Quality of Life (TBI-QOL) measurement system relevant for individuals with traumatic brain injury (TBI). Data were collected at five rehabilitation facilities funded as part of the TBI Model Systems network from 590 individuals with complicated mild, moderate, or severe TBI to construct the TBI-QOL Mobility and Upper Extremity item banks. Item response theory and factor analyses supported the unidimensionality of the Mobility and Upper Extremity banks. Descriptive statistics showed a ceiling effect for both measures. Simulated CATs showed that measurement precision was maintained across administration formats for both measures. The Upper Extremity CAT showed a loss of precision for individuals without impairment and that a higher number of items were required to achieve sufficiently precise measurement, compared to the Mobility CAT. The TBI-QOL Upper Extremity and Mobility item banks achieved good breadth of coverage, particularly among those individuals who have experienced some degree of functional limitation. The use of CAT administration minimizes respondent burden, while allowing for the comprehensive assessment of adults with TBI. The combined use of the TBI-QOL with performance-based measures could guide the development of targeted rehabilitation treatments.

Author(s):