As a contributor at talkstats.com one of the most often seen topics of posters’ questions is that of Likert data. The problem with these questions is there generally is no “correct” answer. The field has been debating the treatment of Likert and Likert type data for 80 years. The answer to these questions is to become informed and make an appropriate decision based on data, measurement and the inferences being made.
I recently wrote a paper regarding Likert data for a psychometrics class that I figured I’d share for those wanting to understand how a researcher should treat Likert data. The reference list is also a valuable source of information.
A 2008 paper discussing the treatment of categorical data not used in the above paper (click this)