'Less is more': validation with Rasch analysis of five short-forms for the Brain Injury Rehabilitation Trust Personality Questionnaires (BIRT-PQs).
Leonardo PellicciariDaniele PiscitelliBenedetta BasagniAntonio De TantiLorella AlgeriSerena CaselliMaria Paola CiurliJessica ConfortiAnna EstraneoPasquale MorettaMaria Grazia GambiniMaria Grazia InzaghiGianfranco LambertiMauro MancusoMaria Luisa RinaldesiMatteo SozziLaura AbbruzzeseMarina ZettinFabio La PortaPublished in: Brain injury (2020)
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.