TY - JOUR
T1 - The unidimensionality of the five Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs) may be improved
T2 - preliminary evidence from classical psychometrics
AU - Basagni, Benedetta
AU - Piscitelli, Daniele
AU - De Tanti, Antonio
AU - Pellicciari, Leonardo
AU - Algeri, Lorella
AU - Caselli, Serena
AU - Formisano, Rita
AU - Conforti, Jessica
AU - Estraneo, Anna
AU - Moretta, Pasquale
AU - Gambini, Maria Grazia
AU - Inzaghi, Maria Grazia
AU - Lamberti, Gianfranco
AU - Mancuso, Mauro
AU - Quinquinio, Cristina
AU - Sozzi, Matteo
AU - Abbruzzese, Laura
AU - Zettin, Marina
AU - La Porta, Fabio
PY - 2020/4/15
Y1 - 2020/4/15
N2 - Objective: To assess the internal construct validity (ICV) of the five Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQ) with Classical Test Theory methods. Methods: Multicenter cross-sectional study involving 11 Italian rehabilitation centers. BIRT-PQs were administered to patients with severe Acquired Brain Injury and their respective caregivers. ICV was assessed by the mean of an internal consistency analysis (ICA) and a Confirmatory Factor Analysis (CFA). Results: Data from 154 patients and their respective caregivers were pooled, giving a total sample of 308 subjects. Despite good overall values (alphas ranging from 0.811 to 0.937), the ICA revealed that several items within each scale did not contribute as expected to the total score. This result was confirmed by the CFA, which showed the misfit of the data to a unidimensional model (RMSEA ranging from 0.077 to 0.097). However, after accounting for local dependency found within the data, fitness to a unidimensional model improved significantly (RMSEA ranging from 0.050 to 0.062). Conclusion: Despite some limitations, our analyses demonstrated the lack of ICV for the BIRT-PQ total scores. It is envisaged that a more comprehensive ICV analysis will be performed with Rasch analysis, aiming to improve both the measurement properties and the administrative burden of each BIRT-PQ.
AB - Objective: To assess the internal construct validity (ICV) of the five Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQ) with Classical Test Theory methods. Methods: Multicenter cross-sectional study involving 11 Italian rehabilitation centers. BIRT-PQs were administered to patients with severe Acquired Brain Injury and their respective caregivers. ICV was assessed by the mean of an internal consistency analysis (ICA) and a Confirmatory Factor Analysis (CFA). Results: Data from 154 patients and their respective caregivers were pooled, giving a total sample of 308 subjects. Despite good overall values (alphas ranging from 0.811 to 0.937), the ICA revealed that several items within each scale did not contribute as expected to the total score. This result was confirmed by the CFA, which showed the misfit of the data to a unidimensional model (RMSEA ranging from 0.077 to 0.097). However, after accounting for local dependency found within the data, fitness to a unidimensional model improved significantly (RMSEA ranging from 0.050 to 0.062). Conclusion: Despite some limitations, our analyses demonstrated the lack of ICV for the BIRT-PQ total scores. It is envisaged that a more comprehensive ICV analysis will be performed with Rasch analysis, aiming to improve both the measurement properties and the administrative burden of each BIRT-PQ.
KW - Behavioral Symptoms
KW - Brain Injuries
KW - Outcome Assessment (Health care)
KW - Personality Assessment
KW - Psychometrics
KW - Rehabilitation
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U2 - 10.1080/02699052.2020.1723700
DO - 10.1080/02699052.2020.1723700
M3 - Article
C2 - 32126842
AN - SCOPUS:85080946379
VL - 34
SP - 673
EP - 684
JO - Brain Injury
JF - Brain Injury
SN - 0269-9052
IS - 5
ER -