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http://dx.doi.org/10.24986/anxmod.2019.15.1.53

Reliability and Validity of Korean version of GRIT  

Lee, Ung (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Lim, Se-Won (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Shin, Young-Chul (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Shin, Dong-Won (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Oh, Kang Seob (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Kim, Sun-Young (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Kim, Young Hwan (Department of Nuclear Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Jeon, Sang Won (Department of Psychiatry, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
Publication Information
Anxiety and mood / v.15, no.1, 2019 , pp. 53-60 More about this Journal
Abstract
Objective : GRIT is a non-cognitive trait which is defined as perseverance and passion for long-term goals. It predicts success, performance and thedifference from other traits. The purpose of this study was to examine the reliability and validity of the Korean version of the GRIT scale. Methods : A total of 92 patients were enrolled in the study. All patients received psychiatric assessment including Clinical Useful Depression Outcome Scale (CUDOS), Clinical Useful Anxiety Outcome Scale (CUXOS), Patient Health Questionnaire (PHQ-15), Connor-Davidson Resilience Scale (CDRS), Brief Resilience Scale (BRS), and GRIT as well as demographic assessment. Cronbach's alpha coefficient of total GRIT score and the split-half reliability of each item was calculated to assess test reliability. Exploratory and confirmatory factor analyses were performed to select the best fitting model and assess construct validity. Finally, a correlation analysis was performed to check convergent and discriminant validity. Results : Cronbach's alpha coefficient for GRIT was found to be 0.85 and all Cronbach's alpha were more than 0.8 even in cases where all items were deleted. We found 3 appropriate factor models in exploratory factor analysis, compared them with 3 models and chose the 2-factor model as the most suitable based on the best fit test. Finally, correlation of the GRIT with CUDOS, CUXOS, PHQ-15, CDRS and BRS were statistically significant (all p<0.01), with relatively low correlation coefficient. Conclusion : This study indicates that the Korean version of GRIT is a reliable and valid instrument for investigating individual power of passion and perseverance.
Keywords
GRIT; Korean version; Reliability; Validity; Factor analysis;
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