www.psychexamreview.com

In this video I describe the 4 scales of measurement proposed by Stanley Smith Stevens, which have become the standard way of defining types of data. These include nominal, ordinal, interval, and ratio. I discuss the defining features of each, provide a few examples in psychological research, and mention the descriptive statistics that can be applied for each type. I also explain the distinction between continuous and discrete variables that can be used when discussing interval or ratio data. You can find the original 1946 paper by Stevens here: https://www.fpce.uc.pt/niips/novoplan...

Summary slides for this video available here: https://psychexamreview.com/scales-of...