For teaching purposes and out of curiosity towards some psychometric questions, I have run a survey on extraversion here. The dataset has been published at OSF (DOI 10.17605/OSF.IO/4KGZH). The survey is base on a google form, which in turn saves the data in Google spreadsheet. Before the data can be analyzed, some preparation and makeup is in place. This posts shows some general makeup, typical for survey data. Download the data and load packages Download the data from source (Google spreadsheets); the package gsheet provides an easy interface for that …