You cannot understand what you cannot measure.
Measurement matters. At some point in the dissertation development process, everyone needs to confront the issue of measurement. We’ve found that many if not most students have a fuzzy sense at best of how to define and measure important characteristics of the concepts or phenomena they propose to study. While measurement may be less of an issue in qualitative studies, careful definition and operational measurement of variables and indicators is essential in all quantitative work.
Likert-type scales are commonly used in surveys and other quantitative work, but it is essential to understand how the underlying constructs are measured with Likert scales, and the assumptions and limitations that accompany use of such a measure.
See our updated discussion of this measurement approach here: