“…A robust finding in this regard is the consistency effect (Lewis & Mayer, 1987): word problem solvers typically make more errors and take longer on inconsistent than on consistent compare word problems (Boonen et al, 2016;Hegarty et al, 1995;Lewis & Mayer, 1987;Pape, 2003;van der Schoot et al, 2009;Verschaffel, De Corte, & Pauwels, 1992). Throughout the years, this consistency effect has been observed across different populations, such as higher education students (e.g., Hegarty et al, 1995;Lewis, 1989;Lewis & Mayer, 1987), higher elementary school children (e.g., van der Schoot et al, 2009), lower elementary school children (e.g., Boonen & Jolles, 2015;Mwangi & Sweller, 1998;Schumacher & Fuchs, 2012;Willis & Fuson, 1988), and for children with varying levels of mathematical ability (e.g., Boonen et al, 2016).…”