The objective was to analyze the psychometric properties of the Adapted Tuckman Procrastination Scale (ATPS) from its application to 764 students belonging to the private university of metropolitan Lima. The exploratory factor analysis was used as evidenceof validity related to the internal structure of the scale, obtaining a one-dimensional structure that underlies the 15 items that make it up, however, three items obtained factorial weights less than 0.32, the scale being 12 items that show better adjustment rates. McDonald's Cronbach and omega reliability coefficients were greater than 0.70 in all cases, showing internal consistency. Evidence of validity was obtained in relation to another variable, through the correlation between ATPS scores and academic performance, being negative and statistically significant. It is concluded that the ATPS has adequate psychometric properties to co...

El objetivo fue analizar las propiedades psicométricas de la escala Adaptada de Procrastinación de Tuckman (ATPS) a partir de su aplicación a 764 estudiantes pertenecientes a una Universidad Privada de Lima metropolitana. Se empleó el análisis factorial exploratorio como evidencia de validez relacionada a la estructura interna de la escala, obteniéndose una estructura unidimensional que subyace a los 15 ítems que la conforman, sin embargo, tres ítems obtuvieron pesos factoriales menores a 0.32, siendo la escala de 12 ítems la que evidencia mejores índices de ajuste. Los coeficientes de confiabilidad alfa de Cronbach y omega de McDonald resultaron superiores a 0.70 en todos los casos, evidenciándose consistencia interna. Se obtuvo evidencia de validez en relación con otra variable, a través de la correlación entre las puntuaciones en ATPS y el rendimiento académico, siendo ...

This study was aimed at linguistically adapting the short version of McClosky's Academic Procrastination Scale (APS-S) and obtaining evidence of validity, reliability, and equity in university students from Lima. A total of 4,534 students participated, 2,052 women (45.3%) and 2,482 men (54.7%). The confirmatory factorial analysis of the scale reached an adequate fit to the hypothesized measurement model (CFI = .994, TLI = .988, RMSEA = .038, SRMR = .014). In addition, validity is evidenced with other variables, through correlations with academic self-efficacy (r=-.319; p<0.001) and academic performance (r= - .146; p < .001). Reliability was estimated with the ordinal alpha (αord = .867), and ordinal omega (ωord= .849) coefficients. Factor invariance analysis showed that the measure is equivalent between men and women (∆CFI < .010, ∆RMSEA < .015). It is concluded that th...