“…This gender gap has shifted throughout the past decades (Freudenthaler, Spinath, & Neubauer, 2008): Two meta-analyses found only negligible gender differences in the results of standardized Math tests (Else-Quest, Hyde, & Linn, 2010;Hyde, Fennema, & Lamon, 1990) and various studies now consistently show that girls outperform boys in language based subjects (Deary, Strand, Smith, & Fernandes, 2007;Marsh & Yeung, 1998;Spinath, Freudenthaler, & Neubauer, 2010; for an overview on German samples see Hannover & Kessels, 2011). A similar pattern emerged when grades were considered as the achievement criterion: "When differences are found, they almost always favor girls" (Kimball, 1989, p. 199, see also Kuhl & Hannover, 2012;Marsh & Yeung, 1998;Spinath et al, 2010;Weis, Heikamp, & Trommsdorff, 2013). There is still no generally accepted idea, which individual characteristics potentially account for this gender gap.…”