Including an even number of choices on a rating scale is advisable to eliminate the tendency of some groups to choose the noncommittal mid-point on the range.

Question

Quizplus · Accepted Answer

Research suggests that when given an odd number of rating scale choices, some people tend to choose the midpoint as a non-committal option, while others may hesitate to choose the extreme options. Including an even number of choices helps to eliminate this bias and encourages respondents to provide more thoughtful and accurate responses.

Including an Even Number of Choices on a Rating Scale