Background: Previous analyses demonstrated a lack of unidimensionality, item redundancy, and substantial administrative burden for the Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs). Objective: To use Rasch Analysis to calibrate five short-forms of the BIRT-PQs, satisfying the Rasch model requirements. Methods: BIRT-PQs data from 154 patients with severe Acquired Brain Injury (s-ABI) and their caregivers (total sample = 308) underwent Rasch analysis to examine their internal construct validity and reliability according to the Rasch model. Results: The base Rasch analyses did not show sufficient internal construct validity according to the Rasch model for all five BIRT-PQs. After rescoring 18 items, and deleting 75 of 150 items, adequate internal construct validity was achieved for all five BIRT-PQs short forms (model chi-square p-values ranging from 0.0053 to 0.6675), with reliability values compatible with individual measurements. Conclusions: After extensive modifications, including a 48% reduction of the item load, we obtained five short forms of the BIRT-PQs satisfying the strict measurement requirements of the Rasch model. The ordinal-to-interval measurement conversion tables allow measuring on the same metric the perception of the neurobehavioral disability for both patients with s-ABI and their caregivers.

Pellicciari, L., Piscitelli, D., Basagni, B., De Tanti, A., Algeri, L., Caselli, S., et al. (2020). 'Less is more': validation with Rasch analysis of five short- forms for the Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs). BRAIN INJURY, 34(13-14), 1741-1755 [10.1080/02699052.2020.1836402].

'Less is more': validation with Rasch analysis of five short- forms for the Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs)

Piscitelli, D;Caselli, S;
2020

Abstract

Background: Previous analyses demonstrated a lack of unidimensionality, item redundancy, and substantial administrative burden for the Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs). Objective: To use Rasch Analysis to calibrate five short-forms of the BIRT-PQs, satisfying the Rasch model requirements. Methods: BIRT-PQs data from 154 patients with severe Acquired Brain Injury (s-ABI) and their caregivers (total sample = 308) underwent Rasch analysis to examine their internal construct validity and reliability according to the Rasch model. Results: The base Rasch analyses did not show sufficient internal construct validity according to the Rasch model for all five BIRT-PQs. After rescoring 18 items, and deleting 75 of 150 items, adequate internal construct validity was achieved for all five BIRT-PQs short forms (model chi-square p-values ranging from 0.0053 to 0.6675), with reliability values compatible with individual measurements. Conclusions: After extensive modifications, including a 48% reduction of the item load, we obtained five short forms of the BIRT-PQs satisfying the strict measurement requirements of the Rasch model. The ordinal-to-interval measurement conversion tables allow measuring on the same metric the perception of the neurobehavioral disability for both patients with s-ABI and their caregivers.
Articolo in rivista - Articolo scientifico
behavioral symptoms; Brain injuries; health care; outcome assessment; personality assessment; psychometrics; rehabilitation;
English
12-nov-2020
2020
34
13-14
1741
1755
open
Pellicciari, L., Piscitelli, D., Basagni, B., De Tanti, A., Algeri, L., Caselli, S., et al. (2020). 'Less is more': validation with Rasch analysis of five short- forms for the Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs). BRAIN INJURY, 34(13-14), 1741-1755 [10.1080/02699052.2020.1836402].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/288391
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