Contributors - Kaitlyn M. Werner, PhD., Main Advisor - Taylor B. Sparrow-Mungal, Undergraduate Student - Roulin (Raymond) Wu, Undergraduate Student - Michael Inzlicht, PhD., Second Advisor We are collaborating to replicate Turri, Buckwalter, & Blou (2015) at University of Toronto. This project is part of the Accelerated CREP project. This is a close replication. We will be replicating the original Turri study with the modifications laid out in the Registered Replication Report - https://psyarxiv.com/zeux9/. Additionally, we are partaking in an extension including a fourth scenario to examine the role of expertise for knowledge attributions. Participants will consist of at least 200* undergraduate students enrolled in the introductory psychology courses at the University of Toronto Scarborough. Students will be recruited online through the University's SONA subject pool system, a website through which undergraduate students can earn course credit for participating in psychology studies. - *Note: we will aim to continuously recruit participants until our subject pool closes at the beginning of April. Eligible participants can find the ad directly on SONA and sign up to participate. This study will be completed online, so once a participant signs up, they can click on the study link (directly in SONA) where they will complete the consent form. Participants who agree to participate will be re-directed to the SocSci survey link provided to us in order to complete the study. After completing the SocSci survey, participants are instructed to navigate back to the original qualtrics survey to read through the debrifing form and enter their information to receive credit - Note: we will set it up in SONA so that participants automatically receive credit upon completing the study, but we ask for their information as a back-up. Because this information is completed in qualtrics, this personalized information will not be linked to the study data and thus all study responses remain completely anonymous). For the main study, participants will read three short epistemological reasoning vignettes (Darrel, Emma, Gerald) – which will be presented in random order (without replacement); each vignette is also randomized (without replacement) into one of three conditions – ignorance control, Gettier case, and knowledge control. Using this full randomization without replacement method, each participant will be exposed to all three vignettes and all three belief conditions. In total, participants will be assigned to one of 36 possible vignette:condition orders.