Rating scale questions
Rating scale definition:A rating scale is a method that requires the respondent to assign a value, sometimes numeric, to the rated object.
Conditions of a good rating scale:
- It should be easy to interpret the meaning of each scale point
- The meaning scale points should be interpreted identically by all respondents
- The scale should include enough points to differentiate respondents from one another as much as validly possible
- Responses to the scale should be reliable, meaning that if we asked the same question again, each respondent should provide the same answer
- The scale’s points should map as closely as possible to the underlying idea (construct) of the scale
The goal is to make sure respondents can answer in a way that allows them to differentiate themselves as much as is validly possible without providing so many points that the scale becomes unreliable. Even on an 11-point (0-10) scale respondents start to have difficulty reliably placing themselves: for example, 3 isn’t so different from 4.