“…On the other hand, there are indications that an affective attitude toward the subject being taught could also cause biased ratings, and so the detection of an overall factor. In line with this assumption, findings from research on student ratings on teaching quality point to an influence of students' general interest in the school subject on the perception of teaching (Ditton, 2002;Eder & Bergmann, 2004;Mayr, 2006;Rahn et al, 2019). Students' general interest in the school subject is known to show a relatively stable pattern from secondary school onwards (Schurtz & Artelt, 2014), although current teaching characteristics may cause minor changes (Ferdinand, 2014;Lazarides et al, 2015).…”