Should You Use Negative Numbers in Rating Scales?
By Jim Lewis, PhD and Jeff Sauro, PhD . September 15, 2020 . Tags: negative scale, UMUX-lite
There are a lot of opinions about the best formats for agreement scales. Sometimes those opinions are strongly held and can lead to lengthy, heated discussions within research teams. When format differences affect measurement properties, those discussions may be time well spent, but when the formats don’t matter (or matter very little), the time is wasted. That’s why we have an ongoing research goal to