The effect vanishes when restricting the analysis to participants who desired, but were not sorted into a particular House.
Although our results are similar, effect sizes are small overall, which attenuates the claims by Crysel et al. We replicated their study while improving on sample size, methods, and analysis. Crysel, Cook, Schember, and Webster ( 2015) argued that being sorted into a particular Hogwarts House through the Sorting Hat Quiz is related to empirically established personality traits. The author of the books has constructed an online questionnaire that allows fans to find out their House affiliation.
In the series, pupils get appointed to one of four groups (Houses) at the beginning of their education based on their personality traits.
The Harry Potter series describes the adventures of a boy and his peers in a fictional world at the “Hogwarts School of Witchcraft and Wizardry”.