Diary Studies
Capture user experiences as they happen, over days or weeks.
What is it?
Diary studies are a longitudinal research method where participants self-report their experiences, behaviors, and feelings over an extended period. They reveal patterns, habits, and pain points that single-session research methods miss.
When to use it
Use diary studies when you need to understand how users interact with a product over time, track habit formation, or study behaviors that are hard to observe in a lab setting.
How to do it
Define the study duration (typically 1-4 weeks) and what you want to learn.
Recruit 10-15 participants and brief them on how and when to log entries.
Provide a simple logging method: app, form, or messaging platform.
Send regular prompts to maintain engagement and reduce drop-off.
Analyze entries for patterns, themes, and unexpected behaviors.
Pro tips
Keep the logging effort minimal. Complex forms kill participation rates.
Follow up with interviews to dive deeper into interesting entries.