TY - JOUR
T1 - Plutchik's Impulsivity Scale
T2 - A Rasch Testlets Model Analysis in Peruvians
AU - Okumura-Clark, Alvaro
AU - Espinoza-Reyes, Maria del Carmen
AU - Burga-Leon, Andres
AU - Pacoricuna-Cabrera, Yulissa
PY - 2025
Y1 - 2025
N2 - The present study aimed to assess the psychometric properties of Plutchik's Impulsivity Scale (PIS, Plutchik & Van Praag, 1989) using Rasch models. 1160 Peruvian university students aged 16 to 34 participated in the study. It was found that the testlets model exhibited superior fit indices (SRMS=.044, AIC=40439.50, BIC=40540.63) compared to the unidimensional Andrich rating scale proposal (SRMS=.102, AIC=41273.89, BIC=41364.91), given the presence of local dependency, because of the existence of direct and inverse items. A satisfactory reliability of .71 was obtained from measurements calculated using the Expected A Posteriori (EAP) method. The differences between the three items were identified based on sex. In conclusion, the PIS is a test that has met the minimum psychometric standards on Peruvian college samples.
AB - The present study aimed to assess the psychometric properties of Plutchik's Impulsivity Scale (PIS, Plutchik & Van Praag, 1989) using Rasch models. 1160 Peruvian university students aged 16 to 34 participated in the study. It was found that the testlets model exhibited superior fit indices (SRMS=.044, AIC=40439.50, BIC=40540.63) compared to the unidimensional Andrich rating scale proposal (SRMS=.102, AIC=41273.89, BIC=41364.91), given the presence of local dependency, because of the existence of direct and inverse items. A satisfactory reliability of .71 was obtained from measurements calculated using the Expected A Posteriori (EAP) method. The differences between the three items were identified based on sex. In conclusion, the PIS is a test that has met the minimum psychometric standards on Peruvian college samples.
KW - Plutchik's Impulsivity Scale
KW - Rasch Testlets model
KW - Impulsivity
KW - Psychometric adaptation
KW - University students
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=ulima_cris&SrcAuth=WosAPI&KeyUT=WOS:001614872900010&DestLinkType=FullRecord&DestApp=WOS_CPL
U2 - 10.21865/RIDEP77.3.10
DO - 10.21865/RIDEP77.3.10
M3 - Artículo (Contribución a Revista)
SN - 1135-3848
VL - 3
SP - 117
EP - 133
JO - Revista Iberoamericana de Diagnóstico y Evaluación – e Avaliação Psicológica
JF - Revista Iberoamericana de Diagnóstico y Evaluación – e Avaliação Psicológica
IS - 77
ER -