“…The probability with which the mushroom is classified is a function of its similarity to the retrieved edible mushrooms in comparison to the retrieved non-edible mushrooms. Exemplar models are frequently used to understand the cognitive processes underlying classifications and have been successfully employed to explain a large range of behavioural phenomena (Hoffmann, von Helversen, & Rieskamp, 2014;Nosofsky & Johansen, 2000;Olsson, Juslin, & Olsson, 2006;Scheibehenne, von Helversen, & Rieskamp, 2015;von Helversen, Karlsson, Mata, & Wilke, 2013 ;von Helversen, Mata, & Olsson, 2010). Here, we used the general context model (GCM; Nosofsky, 1986;Nosofsky & Johansen, 2000) to describe classifications using non-social information and then extended the GCM to incorporate social information according to either a single-step or a two-step integration process.…”