Development and Validation of the Japanese Version of the Triarchic Model of Grit Scale 論文 Keigo Hatto・Daichi Sugawara・Hidehumi Hitokoto・Jesus Alfonso D. Datu ·2025-10-21 ·『Journal of Psychoeducational Assessment』 44(2) pp. 160-176 doi:10.1177/07342829251388845