Poorly designed questions and scaling problems can derail your research efforts faster than you can say "the cat in the hat"! To help you avoid a few of the more common and onerous problems, we will ...

Data from mixed-mode questions are hard, if not impossible, to interpret accurately. The first part of this article will give an example of a mixed-mode question and an analysis of how to interpret ...

The geriatric depression scale is a self-reported screening survey to help detect depression in older adults. There’s a short version with 15 questions and a long version with 30. The geriatric ...