Examination of the SUPPS-P impulsive behavior scale among male and female youth: Psychometrics and invariance

• Autor(a) principal: Pechorro, Pedro
• Data de Publicação: 2021
• Outros Autores: Revilla, Rebecca, Palma, Victor Hugo, Nunes, Cristina, Martins, Cátia, Cyders, Melissa A.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.1/15441
• topic: Assessment; Measurement invariance; SUPPS-P impulsive behavior; Validation; Youth

The UPPS-P Impulsive Behavior Scale is one of the most used and easily administered self-report measures of impulsive traits. The main objective of this study was to examine the psychometric properties of the shorter SUPPS-P scale among a school sample of 470 youth (Mage = 15.89 years, SD = 1.00) from Portugal, subdivided into males (n = 257, Mage = 15.97 years, SD = 0.98) and females (n = 213, Mage = 15.79 years, SD = 1.03). Confirmatory factor analysis results revealed that the latent five-factor structure (i.e., Negative urgency, Lack of perseverance, Lack of premeditation, Sensation seeking, and Positive urgency) obtained adequate fit and strong measurement invariance demonstrated across sex. The SUPPS-P scale also demonstrated satisfactory psychometric properties in terms of internal consistency, discriminant and convergent (e.g., with measures of youth delinquency, aggression) validities, and criterion-related validity (e.g., with crime seriousness). Findings support the use of the SUPPS-P scale in youth. Given the importance of adolescence as a critical period characterized by increases in impulsive behaviors, having a short, valid, reliable, and easily administered assessment of impulsive tendencies is important and clinically impactful.