ALZAHRANI, Abdulrahman Jmman. Psychometric properties of Snijders- Omen test to measure non- verbal intelligence according to item response theory- on a sample of secondary school students in the city of Makkah. Journal of Educational and Psychological Sciences, New Mexico, United States, v. 6, n. 10, p. 133–160, 2022. DOI: 10.26389/AJSRP.R030921. Disponível em: https://www.ajsrp.ojsexpert.com/index.php/jeps/article/view/4788. Acesso em: 20 dec. 2025.