Master the essential UX research methods. Learn when to use interviews, usability testing, surveys, and analytics to make better design decisions.
What are the most important UX research methods?
Essential UX research methods are user interviews for qualitative depth, usability testing for task performance, surveys for quantitative breadth, contextual inquiry for observation, card sorting for information architecture, A/B testing for comparison, and analytics for behavioral patterns.
When should you use qualitative versus quantitative research?
Qualitative research like interviews and usability testing answers why — it reveals motivations, mental models, and pain points. Quantitative research like surveys and A/B tests answers what and how many. The most powerful research combines both: discover issues qualitatively, validate them quantitatively.
How many participants do you need for usability testing?
Research shows that 5 users reveal 85 percent of usability problems. For generative research, 5 to 8 participants per distinct user group is typically sufficient. For validating solutions, you need larger samples — especially for A/B tests that require statistical significance.
How do you recruit research participants effectively?
Options include UserTesting and Respondent for quick recruitment, LinkedIn for professional users, your existing customer base via email, and product analytics to identify power users. Always screen participants with 5 to 10 qualifying questions to ensure they match your target persona.
What makes user interview questions effective?
Effective questions are open-ended, past-focused, and avoid leading the participant. Ask tell me about the last time you rather than would you use this feature. Follow threads by asking for more detail. Silence is productive — resist the urge to fill it immediately.