Doctors frequently hand out a written questionnaire, such as SPEED, to screen for possible symptoms of dry eye before performing other physical tests. Dry eye disease affects millions of Americans and ...

Quality of life is an important end point in clinical trials, yet there are few quality of life questionnaires for neuroendocrine tumours. Analysis of QLQ-GINET21 scales confirmed appropriate ...

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 ...