A numerical scale is a rating scale requiring the respondent to provide their opinion in the form of numerical values. This rating scale equates the benchmark response options with an ordered set of numerical values so that respondents can quantify their opinions.
This rating scale allows the researcher to view survey responses as quantitative symbols. A numerical rating scale is typically used to estimate qualitative data such as pain, feelings, product satisfaction, the likelihood of referral, customer loyalty, etc.
Typically, the researcher marks the endpoints of the numerical rating scale in terms of the value measured so that both ends represent the extremes of that value.
