Verbalization of Rating Scales Taking Account of Their Polarity

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

While numerical bipolar rating scales may evoke positivity bias, little is known about the corresponding bias in verbal bipolar rating scales. The choice of verbalization of the middle category may lead to response bias, particularly if it is not in line with the scale polarity. Unipolar and bipolar seven-category rating scales in which the verbalizations of the middle categories matched or did not match the implemented polarity were investigated in randomized experiments using a non-probabilistic online access panel in Germany. Bipolar rating scales exhibited higher positivity bias and acquiescence than unipolar rating scales. Reliability, validity, and equidistance tended to be violated if the verbalizations of the middle category did not match scale polarity. The results provide a rationale for rating scale verbalization.

Details

Original languageEnglish
Pages (from-to)378-391
Number of pages14
JournalField methods
Volume35
Issue number4
Publication statusPublished - Nov 2023
Peer-reviewedYes

External IDs

Scopus 85146356592

Keywords