“…According to the PISA results in 2012, 2015 and 2018, variables affecting student performance in the Turkish sample include fairness and effectiveness in educational resources, school resources, socio-economic level, pre-school education period, educational background, gender, motivation, self-efficacy, school income, reading habits, and emotional support of the family. These variables are based on the factors such as the number of mathematics teachers and the number of students in the school, computer usage opportunities, the mother's working status, having a computer at home, the students having a room of their own, and the number Mimbar Sekolah Dasar, Volume 8 Number 3 December 2021 [235] of books at home (Acar & Öğretmen;Özer-Özkan & Acar-Güvendir, 2014;Aksu et al, 2017;Ertem, 2021;Türkan et al, 2015;Arıcı & Altıntaş, 2014;Güzeller & Şeker, 2016).…”