Likert-type scales are often used in survey instruments, and practitioners and researchers need to clearly understand the appropriate use of a midpoint in these scales. The authors of this article explore research studies from various disciplines to indicate that there are circumstances when a midpoint should be included and others where it should not. They provide tables, summarizing the benefits and problems in each case as well as evidence-based strategies to employ.
This is the peer reviewed version of the following article:
Chyung, S.Y., Roberts, K., Swanson, I., & Hankinson, A. (2017). Evidence-Based Survey Design: The Use of a Midpoint on the Likert Scale. Performance Improvement, 56(10), 15-23.
which has been published in final form at doi: 10.1002/pfi.21727. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Chyung, Seung Youn (Yonnie); Roberts, Katherine; Swanson, Ieva; and Hankinson, Andrea. (2017). "Evidence-Based Survey Design: The Use of a Midpoint on the Likert Scale". Performance Improvement, 56(10), 15-23.