Laosuphap J, Taephant N. The Validity, item analysis, and Reliability of the Short Grit Scale (Grit-S): Thai Version. APPJ [internet]. 2018 Sep. 28 [cited 2026 Sep. 11];34(3):171-82. available from: https://he01.tci-thaijo.org/index.php/APPJ/article/view/99796