Demographic and participant characteristic measures
Online questionnaires collected self-reported data on gender, age, ethnicity, height, weight, and SEP. The primary measure of SEP was the highest educational level achieved, for which there were six options (less than high school, high school completion, college or foundation degree, bachelor’s degree, master’s degree, and doctoral or professional degree). Additional SEP measures collected were subjective social status and equivalised household income. For subjective social status, participants completed the MacArthur Scale of Subjective Social Status (SSS) [