“…When the literature is reviewed, it is possible to find studies examining the TIMSS (Thomson, Wernert, O'Grady, & Rodrigues, 2017;Yildirim, Yildirim, & Ceylan, 2017) or the factors affecting science success in HSEs (Akay, 2017;Ulutan, 2018). Furthermore, there are also studies analyzing the course books according to TIMSS cognitive domains (Pektas, Incikabi & Yaz, 2015), the curriculum/national examinations (Afacan & Nuhoglu, 2008;Boyuk, 2017;Delil & Yolcu-Tetik, 2015;Delil, 2019) or HSEs (Arikan, 2018;Cepni, Ayvaci, & Keles, 2001).…”