Much ado about grit: A meta-analytic synthesis of the grit literature
Credé, M., Tynan, M. C., & Harms, P. D. (2017). 'Much ado about grit: A meta-analytic synthesis of the grit literature.' Journal of Personality and Social Psychology, 113(3), 492-511. doi:10.1037/pspp0000102. THE PAPER THAT CARRIES THE ARTICLE. Scale, in the abstract's words: 584 effect sizes from 88 independent samples representing 66,807 individuals, drawn per the methods from 73 studies. Overall grit with academic performance .18 true score, .15 observed, against .21 for non-academic performance; the authors note other well-known predictors report correlations more than twice as big. Retention .12 to .18 depending on inclusions. Grit with conscientiousness .84 true score, .66 observed, against the .63 typically found between two global conscientiousness inventories; perseverance with conscientiousness .83, consistency with conscientiousness .61. Their words: the correlation 'is so strong as to not only limit the incremental value of grit scores for the prediction of performance over and above conscientiousness but also suggest that grit may be redundant with conscientiousness'. INCREMENTAL VALIDITY, Table 6: 'overall grit explains no variance in either overall academic performance or high school GPA after controlling for conscientiousness, and explains only a very small amount of
Credé, M., Tynan, M. C., & Harms, P. D. (2017). 'Much ado about grit: A meta-analytic synthesis of the grit literature.' Journal of Personality and Social Psychology, 113(3), 492-511. doi:10.1037/pspp0000102. THE PAPER THAT CARRIES THE ARTICLE. Scale, in the abstract's words: 584 effect sizes from 88 independent samples representing 66,807 individuals, drawn per the methods from 73 studies. Overall grit with academic performance .18 true score, .15 observed, against .21 for non-academic performance; the authors note other well-known predictors report correlations more than twice as big. Retention .12 to .18 depending on inclusions. Grit with conscientiousness .84 true score, .66 observed, against the .63 typically found between two global conscientiousness inventories; perseverance with conscientiousness .83, consistency with conscientiousness .61. Their words: the correlation 'is so strong as to not only limit the incremental value of grit scores for the prediction of performance over and above conscientiousness but also suggest that grit may be redundant with conscientiousness'. INCREMENTAL VALIDITY, Table 6: 'overall grit explains no variance in either overall academic performance or high school GPA after controlling for conscientiousness, and explains only a very small amount of
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Credé, M., Tynan, M. C., & Harms, P. D. (2017). Much ado about grit: A meta-analytic synthesis of the grit literature. Journal of Personality and Social Psychology, 113(3), 492-511.