iatgen (pronounced “I A T gen”) is an R package and Shiny App that builds and analyzes Qualtrics surveys that contain IATs (Implicit Association Tests; Greenwald et al., 1998) following a procedure developed by Carpenter et al. (2018; preprint available at https://psyarxiv.com/hgy3z/). Specifically, Carpenter et al. developed procedures for “survey-software” IATs. These are IATs constructed out of