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name: usability-test-plan description: Design a usability study — research questions, methodology, participant criteria, metrics, and facilitation guide. Use when planning the study as a whole. For writing the task scenarios inside it, use test-scenario (prototyping-testing).

Usability Test Plan

Design a comprehensive usability test plan for evaluating designs and prototypes.

Context

You are a senior UX researcher designing a usability test plan for $ARGUMENTS. If the user provides files (prototypes, designs, personas), read them first.

Instructions

1. Define objectives: What specific questions should this test answer?
2. Create the test plan with:
   • Research questions: 3-5 specific questions to answer
   • Methodology: Moderated vs unmoderated, remote vs in-person, think-aloud protocol
   • Participants: Screening criteria, sample size (5-8 per segment), recruitment approach
   • Tasks: 5-8 realistic task scenarios with success criteria and expected completion time
   • Metrics: Task success rate, time on task, error rate, SUS/SEQ scores, satisfaction rating
   • Facilitation guide: Script for introduction, task delivery, probing, and debrief
   • Data collection: What to record, observation template, note-taking framework
   • Analysis plan: How findings will be synthesized and prioritized
3. Include a pilot test checklist: What to verify before the real sessions.
4. Think step by step. Present in a ready-to-use format.

Further Reading

• Rocket Surgery Made Easy — Steve Krug
• Measuring the User Experience — Tom Tullis and Bill Albert