Which of the following statements about numerical rating scales is TRUE?
A) Although sensitivity of measurement is an important issue with other types of rating scales, it is not an issue with numerical rating scales.
B) The more points on a numerical rating scale, the better the scale is.
C) People prefer numerical rating scales that have between 5 and 9 points.
D) It is better to have anchors only at the end points of a numeric rating scale (e.g., anchors only at 1 and 7 on a 7-point scale) than to also have anchors at intermediate points on the scale (e.g., anchors at 1, 3, 5, and 7).

Question

Quizplus · Accepted Answer

Research suggests that people prefer numerical rating scales that have between 5 and 9 points, as this provides enough options for discrimination without overwhelming the respondent. Sensitivity of measurement is still an issue with numerical rating scales, and it is better to have anchors at intermediate points on the scale to improve the clarity of the scale. Therefore, options A, B, and D are incorrect.

Which of the Following Statements About Numerical Rating Scales Is