Leedy and Ormrod are the contributors to the textbook Practical Research Planning and Design. In chapter 2 of the book a nominal scale is defined. A nominal scale is a discrete classification of data. Instead of measuring data it groups them in distinct categories.
An example of a nominal scale would be a student’s course choices. This information could be correlated with school results. In addition to nominal scales one might hear of ordinal scales, interval scales, and ratio scales. Each scale has its own function. There is also a sub type of nominal scales that are referred to as dichotomous.
