Reply to: "Concerns about cognitive performance at chance level"

The following is a response to Jost, who contests findings from a recently published mental rotation study2. In the original study, participants scored 2.765±0.182 out of 20, when scored such that a point was awarded when both ‘same’ images on the V&K MRT3 (Vandenberg and Kuse Mental Rotations Test) were correctly identified in a given trial. These scores indeed are close to chance, with Hegarty defining chance performance to be 3.33 out of 20 when using the same scoring method. In his critique, Jost poses two questions regarding the findings presented by Toth and Campbell.