Open-ended questions result in deeper insights. Closed questions provide clarification and detail, but no unexpected insights.| Nielsen Norman Group
Pilot testing (a session or two before the real test) helps fine-tune usability studies, leading to more reliable results.| Nielsen Norman Group
UX researchers use this popular observational methodology to uncover problems and opportunities in designs.| Nielsen Norman Group
Large, rectangular menus group navigation options to eliminate scrolling and use typography, icons, and tooltips to explain users' choices.| Nielsen Norman Group