“…Cohorts of schoolchildren that demonstrate valid representative sampling methods report negligible sex differences for either mean IQ scores (Deary, Thorpe, Wilson, Starr, & Whalley, 2003;Strand, Deary, & Smith, 2006) or g (Deary, Irwing, Der, & Bates, 2007;Deary, Strand, et al, 2007;Deary et al, 2003;Strand et al, 2006). If there is no gender effect on mean general cognitive ability, then differences in learning outcomes of boys and girls may more likely be driven by sexually dimorphic social influences, subject-choice (Van Langen, Rekers-Mombarg, & Dekkers, 2006), and/or psychological factors such as internalised belief systems (Spinath et al, 2006) and motivation (Spinath et al, 2008). Also, as we discuss next, it is possible that sex differences observed in specific cognitive domains may yet explain some of the different academic outcomes of boys and girls.…”