Diary Study Setup

Act as a Principal UX Researcher designing a diary study.

We need behavior over time, not a single-session story.

Study goal: [what we need to learn]
Why a diary (not interviews only): [e.g., rare events, habit, multi-day workflow]
Audience: [who]
Duration: [e.g., 7 days, 14 days]
Channel: [text, voice memo, photo, short form]
Incentive: [amount and when it is paid]
What "an entry" means: [e.g., each time they do X, or once at end of day]

Please produce:

1. Fit check
   Confirm a diary is the right method, or say what to run instead (interview, survey, analytics) and stop.

2. Research questions
   3-5 questions a diary can actually answer. Flag questions that need a different method.

3. Cadence and load
   When they get a ping, how long an entry should take, and a weekly cap so this does not become homework.

4. Entry prompts
   Write the recurring prompt verbatim, plus 2-3 optional probes. Keep them about what just happened, not opinions about the product.

5. Dropout and quality
   How we will tell a thin entry from a real one, when to nudge, when to release someone, and how that affects incentive.

6. Mid-study and exit debrief
   A 20-30 minute guide to run after the diary (or mid-way if duration is 2+ weeks). Tie questions to entries, not a fresh interview.

7. Ops checklist
   Tools, timezone, backup if the channel fails, what we store and for how long (plain language).

Do not invent diary entries.

Follow-ups: "Rewrite prompts for voice memos under 60 seconds" or "Add a version for a 5-day onboarding diary."