“…As Stevenson (2012) points out, recent research indicates that fluid reasoning ability may be more influenced by learning experiences than one would expect. For instance, there are considerable individual differences in the effects of retesting and training on fluid reasoning tasks in both adults (Freund & Holling, 2011) and school chil-dren (Mackey, Hill, Stone, & Bunge, 2011). Moreover, the results of dynamic testing studies correspond with research on retesting and training effects of fluid intelligence, since generally positive training effects are found, with large individual variation in improvement (for instance, Fabio, 2005;Jeltova et al, 2011;Swanson & Lussier, 2001;Sternberg et al, 2007).…”