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《Academic Journal of Second Military Medical University》 2017-12
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Amendment of Grit-12 and testing of its reliability and validity in military college students

ZHANG Yan;WANG Zi-wei;HUANG Peng;ZHU Xia;Department of Medical Psychology,Fourth Military Medical University;  
Objective To test the reliability and validity of the Chinese version of Grit-12 in military college students,so as to provide a reliable measurement tool for studying grit levels of college students.Methods The items of original Grit-12 were translated and back-translated to survey 337 participants in primary test,and were verified by SPSS 21.0 to form the official Chinese version of Grit-12.A total of 997 students were formally surveyed with the Chinese version of Grit-12,in which 201 students were assessed for exploratory factor analysis and reliability test using SPSS 21.0 software;796 students were assessed for confirmatory factor analysis using Amos 17.0 software and for validity test by psychological capital scale(PCQ-24).After 2 weeks,47 of 796 students were retested.Results The Chinese version of Grit-12 included 12 items,and the factor loading of each item was over 0.56.The accumulating explanatory rate of the 12 items was 47.54%.Confirmatory factor analysis showed that the Chinese version of Grit-12 had a good construct validity,withχ~2/df=2.31,comparative fit index(CFI)=0.97,Tucker-Lewis index(TLI)=0.94,goodness of fit index(GFI)=0.97,incremental fit index(IFI)=0.97,root mean square error of approximation(RMSEA)=0.05,and square residual mean root(SRMR)=0.06.The total score of the Chinese version of Grit-12 and the scores of subscales were positively correlated with the total score of psychological capital and subscale scores(all P0.001).The Cronbachαcoefficient of the Grit-12 was 0.83,and theαcoefficients of the two subscales were 0.76 and 0.82,respectively.The retest reliability(correlation coefficient)of the Chinese version of Grit-12 was 0.80.Conclusion The Chinese version of Grit-12 has good validity and reliability,suggesting that it can be used for assessing grit levels of military college students.
【Fund】: 陕西省社会发展科技攻关项目(2016SF-201)~~
【CateGory Index】: G449
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