The Likert Scale is a five or seven-point scale that is used to allow the respondent to express how much they agree or disagree with a particular statement. ... An Industry Example of a Likert scale.

Catherine Michalopoulou, Maria Symeonaki, Improving Likert Scale Raw Scores Interpretability with K-means Clustering, BMS: Bulletin of Sociological Methodology / Bulletin de Méthodologie Sociologique, ...