Psychometric analysis of the UPPS-P impulsivity scale for children and adolescents using the Rasch polytomous model

• Autores: Garrido, Sebastian Jesús, Ghio, Fernanda Belén, Cupani, Marcos, Bruzone, Manuel
• Formato: artículo
• Fecha de Publicación: 2023
• Institución: Pontificia Universidad Católica del Perú
• Repositorio: Revistas - Pontificia Universidad Católica del Perú
• Lenguaje: español
• OAI Identifier: oai:revistaspuc:article/27087
• Enlace del recurso: http://revistas.pucp.edu.pe/index.php/psicologia/article/view/27087
• Nivel de acceso: acceso abierto
• Materia: Psychometric properties; UPPS-P; Item Response Theory (IRT); Impulsivity; Propiedades psicométricas; Teoría de Respuesta al Ítem (TRI); Impulsividad; Propriétés psychométriques; Théorie des réponses aux items (IRT); Impulsivité; Propriedades psicométricas; Teoria da Resposta ao Item (TRI); Impulsividade

The UPPS-P scale is widely used to assess impulsivity. For this reason, the psychometric properties of the extensive version of UPPS-P were analyzed from the Rasch polytomous model. Eight hundred Argentine adolescents aged 12 to 18 years participated in the study. As a result, it was found that the dimensions of the UPPS-P presented an adequate fit to the Rasch model, adequate levels in the Person Separation Index (PSI), some items with local dependence and an adequate level of unidimensionality. It is concluded that the scale is a valid instrument to assess impulsivity in adolescents; therefore, a conversion table with interval scores is presented to increase the measurement precision of the instrument.