Measuring Neurobehavioral Functioning in People With Traumatic Brain Injury: Rasch Analysis of Neurobehavioral Functioning Inventory.

ABSTRACT:

Objective

To examine internal construct validity of the Neurobehavioral Functioning Inventory (NFI) by applying Rasch analysis.

Setting

An outpatient rehabilitation program trial in New Zealand employing a goal-setting intervention in people with traumatic brain injury (TBI).

Participants

One hundred eight people (mean age = 46 years; 73% male) between 6 months and 5 years post-TBI.

Design

Rasch analysis of the NFI (Partial Credit Model).

Results

Three NFI subscales were not unidimensional and at least 4 items in each subscale had disordered response categories. Two items showed differential item functioning by age, 1 item by educational attainment, and 2 items were found to misfit the overall construct. These items were excluded from the total score cal

SUBMITTER: Czuba KJ 

PROVIDER: S-EPMC4949000 | biostudies-literature | 2016 Jul-Aug

REPOSITORIES: biostudies-literature