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 ...

In 2013, the Oslo Sports Trauma Research Center Overuse Injury Questionnaire (OSTRC-O) was developed to record the magnitude, symptoms and consequences of overuse injuries in sport. Shortly afterwards ...