In general, Likert scale questions include five, seven, or nine points, with five and seven points being the most common. For example, common multiple-choice alternatives for the Likert item include strongly agree, agree, no opinion, disagree, and strongly disagree.
A Likert scale is a popular tool for assessing attitudes, knowledge, perceptions, values, and behavioral changes. A Likert-type scale consists of a set of statements from which respondents can select to score their replies to evaluative questions (Vogt, 1999).