Datau, R., Putrawan, I.M. and Rahayu, W. 2022. The Effects of Odd or Even Number of Options on The Variance of Item Validity in Environmental Personality (Big-Five Personality). International Journal of Science and Society. 4, 1 (Jan. 2022), 90-96. DOI:https://doi.org/10.54783/ijsoc.v4i1.419.