“…In previous studies, a positive relationship between visual representation type and word problem solving performance has been established by calculating correlations between the total amount of (specific) visual representations produced and the total amount of correctly solved word problems (e.g., Blatto-Vallee, Kelly, Gaustad, Porter, & Fonzi, 2007;Guoliang, 2003;Hegarty & Kozhevnikov, 1999;Krawec, 2010Krawec, , 2012Van Garderen, 2006;Van Garderen & Montague, 2003). However, calculating the correlation between two sum scores is an example of a test-level approach entailing limitations to be considered in this study.…”