“…The authors demonstrated that slight, mathematically-irrelevant changes in the semantic relations linking the objects mentioned in the cover stories (e.g., computers assigned to secretaries vs. secretaries assigned to computers) led to significant performance differences. Subsequent research has shown that non-mathematical semantic information related to the entities described in a problem influences lay solvers' performance (Bassok, Chase, & Martin, 1998;Gros, Sander, & Thibaut, 2016;Thevenot & Barrouillet, 2015;Verschaffel, De Corte, & Vierstraete, 1999;Vicente, Orrantia, & Verschaffel, 2007) as well as strategy choice (Gamo, Sander, & Richard, 2010;Gros, Thibaut, & Sander, 2017) and transfer (Gros, Thibaut, & Sander, 2015) on arithmetic word problems. Most of the available evidence regarding this issue has been collected with children and non-expert adults on problems that were not straightforward (e.g., complex permutation problems).…”