To have a reliable and valid response scale, people need to understand what they’re responding to. A poorly worded question, an unclear response item, or an inadequate response scale can create additional error in measurement. Worse yet, the error may be systematic rather than random, so it would result in unmodeled bias rather than just
While customer satisfaction may be thought of as one concept, there’s isn’t a single “official” way to measure it. By one estimate there are more than 40 instances of different customer satisfaction scales described in the published literature. That, in part, is a consequence of how common satisfaction is as a measure. Satisfaction is measured on
Should you label all points on a scale? Should you include a neutral point? What about labeling neutral points? How does that affect how people respond? These are common questions when using rating scales and they’ve also been asked about the Net Promoter Score: What are the effects of having a neutral label on the
In an earlier article, I described the PURE methodology. PURE stands for Practical Usability Rating by Experts. Evaluators familiar with UX principles and heuristics decompose tasks into small steps and rate each step based on a pre-defined scoring system (called a rubric), as shown in Figure 1. Figure 1: Scoring rubric for PURE. The PURE
It seems like there are endless ways to ask questions of participants in surveys. Variety in question types can be both a blessing and a curse. Having many ways to ask questions provides better options to the researcher to assess the opinion of the respondent. But the wrong type of question can fail to capture
A good measure of customer loyalty should be valid, reliable, and sensitive to changes in customer attitudes. For the most part, the Net Promoter Score achieves this (although it does have its drawbacks). One area the Net Promoter Score lacks in is how its scoring approach adds “noise” to the customer loyalty signal. The process
You’ve seen them. You’ve answered them. It seems like everyone has an opinion about them. Here are five things to know about the famous Likert scale. (One for each response option!) The Likert scale was developed and named after psychologist Rensis Likert. The now ubiquitous Likert scale consists of multiple items. Participants are asked to
There are some interesting known differences between men and women in the psychological literature. For example, women tend to be better judges of emotion when looking at faces for just 0.2 of a second[pdf]! And across many measures of ability, while both men and women tend to exhibit overconfidence, men are generally more overconfident than
