Datau R, Putrawan IM, Rahayu W. The Effects of Odd or Even Number of Options on The Variance of Item Validity in Environmental Personality (Big-Five Personality). IJSOC [Internet]. 2022Jan.21 [cited 2026Jul.24];4(1):90-6. Available from: https://ijsoc.goacademica.com/index.php/ijsoc/article/view/419