A brief definition and example of the Likert Scale. These notes are from the text "Research Methods Knowledge Base," authored and maintained online by William M.K. Trochim, Cornell University.

Likert scales/questionnaires are used for attitude measurement, as described in these lecture notes from the University of Glasgow, Scotland, United Kingdom.

Paper examines the methods used in Likert scales to measure agreement/disagreement of a topic and more. Site managed by the University of Northern Iowa.

The author offers his opinion on what to look for when trying to analyze a Likert scale. Site maintained by the Japan Association for Language Teaching.

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