, Journal of Personality and Social Psychology
[NOT READ; carried from the vault's own verification record of 2026-09-24 and attributed to it] Rimfeld, K., and colleagues (2016), Journal of Personality and Social Psychology. 2,321 United Kingdom twin pairs; genetic correlation between grit and conscientiousness of .86; grit added little over the Big Five to academic achievement.
[NOT READ; carried from the vault's own verification record of 2026-09-24 and attributed to it] Rimfeld, K., and colleagues (2016), Journal of Personality and Social Psychology. 2,321 United Kingdom twin pairs; genetic correlation between grit and conscientiousness of .86; grit added little over the Big Five to academic achievement.
Written from the nOT READ; carried from the vault's own verification record of 2026-09-24 and attributed to it.
What our sources record
Recorded when this source was checked, figures included, with page references and quotation marks removed.
2,321 United Kingdom twin pairs; genetic correlation between grit and conscientiousness of .86; grit added little over the Big Five to academic achievement.