Analyzing survey results is a frequent endeavor (for some including me). Let’s not think about arguments whether and when surveys are useful or not (for some recent criticism see Briggs’ book). Typically, respondents circle some option ranging from “don’t agree at all” to “completely agree” for each question (or “item”). Typically, four to six boxes are given where one is expected to tick one. In this tutorial, I will discuss some typical steps to prepare the data for subsequent …