The unidimensionality of the five Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs) may be improved: preliminary evidence from classical psychometrics

Basagni B, Piscitelli D, De Tanti A, Pellicciari L, Algeri L, Caselli S, Formisano R, Conforti J, Estraneo A, Moretta P, Gambini MG, Inzaghi MG, Lamberti G, Mancuso M, Quinquinio C, Sozzi M, Abbruzzese L, Zettin M, La Porta F.