Strongly agree: It's time to test the Likert scale

(University at Buffalo) Researchers often tweak the number of response options in the traditional five-point Likert Scale with little empirical justification for doing so. Now a UB psychologist has tested the test. Leonard Simms says 'six appears to be the magic number' of responses.
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news