Acceso usuarios
Jossué Correa Rojas, Mirian Pilar Grimaldo Muchotrigo
, Ambrosio Tomás Rojas, Marivel Teresa Aguirre Morales, Ingrid Cirilo Acero, Ernesto L. Ravelo Contreras
El objetivo de este estudio fue analizar la evidencia psicométrica de la Escala de Perseverancia (Grit Scale) en sus dos versiones, ya que son los instrumentos más ampliamente utilizados para medir este constructo. Se seleccionaron un total de 5417 estudiantes universitarios de Lima por conveniencia, con un primer grupo compuesto por 4417 estudiantes, en su mayoría mujeres (52.6%), cuyas edades oscilan entre 16 y 35 años. La estructura interna de ambas escalas se analizó mediante un análisis factorial confirmatorio. Se encontró que la Grit-S era una medida más coherente y parsimoniosa (CFI = .98, TLI = .97, RMSEA = .08 [.07-.09]) que la Grit-O (CFI = .87, TLI = .84, RMSEA = .12 [.11-.13]); en ambas versiones, se corrobora parcialmente la existencia de un factor general que explica la varianza de los factores específicos CI y PE (Grit-O; LCS = .42; H = .84; FD = .87; Grit-S; LCS = .38; H = .73 y FD = .80). Con un segundo grupo (n = 1000), se encontró que las puntuaciones de la Grit-S presentaban correlaciones estadísticamente significativas con la autoeficacia académica (r = .45**), el optimismo (r = .40**), la mentalidad de crecimiento (r = .23**) y la mentalidad fija (r = -.23). La fiabilidad de ambas escalas fue aceptable. En conclusión, la Grit-S es una medida más confiable que la Grit-O, y se identificó la existencia de un factor general, lo cual es consistente con el modelo teórico subyacente al instrumento.
The objective of this study was to analyze the psychometric evidence of the Grit Scale in its two versions since they are the most widely used instruments to measure this construct. A total of 5417 university students from Lima were selected by convenience, with a first group made up of 4417 students, mostly women (52.6%), whose ages range from 16 to 35 years old. The internal structure of both scales was analyzed by means of a confirmatory factor analysis. The Grit-S was found to be a more coherent and parsimonious measure (CFI = .98, TLI = .97, RMSEA = .08[.07-.09]) than the Grit-O (CFI = .87, TLI = .84, RMSEA = .12[.11-.13]); in both versions the existence of a general factor explaining the variance of the specific factors CI and PE was partially corroborated (Grit-O; LCS = .42; H = .84; FD = .87; Grit-S; LCS = .38; H = .73 and FD = .80). With a second group (n = 1000), it was found that the Grit-S scores presented statistically significant correlations with academic self-efficacy (r = .45**), optimism (r = .40**), growth mindset (r = .23**), and fixed mindset (r = -.23). The reliability of both scales was acceptable. In conclusion, the Grit-S is a more reliable measure than the Grit-O, and the existence of a general factor was identified, which is consistent with the theoretical model underlying the instrument.
