(Excellent post, Luke. Thank you.) Others have found Iyengar & Lepper's study hard to replicate: Benjamin Scheibehenne, a psychologist at the University of Basel, … decided (with Peter Todd and, later, Rainer Greifeneder) to design a range of experiments to figure out when choice demotivates, and when it does not. But a curious thing happened almost immediately. They began by trying to replicate some classic experiments – such as the jam study, and a similar one with luxury chocolates.