Answer: ordinal scale
Explanation:
There are four levels of measurement: Nominal, Ordinal, Interval, and Ratio. In ordinal measurement, the attributes can be rank-ordered, and attribute labels such as "Strongly Disagree" can be used, always keeping in mind that we can assure that “strongly agree” means the subject agrees more than those who “strongly disagree”, but we cannot quantify their satisfaction levels. The Likert scale is an ordinal scale because it doesn´t allow arithmetic operations.
