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usability-test-plan

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).

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usability-test-plan

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Use usability-test-plan to design a ready-to-run usability study for [product or prototype] that answers [research objective], including participant criteria, realistic tasks, metrics, facilitation guide, analysis plan, and pilot checklist.

Required inputs

  • [product or prototype]
  • [research objective]

User-approved starter prompt based on a pinned source version; check current skill requirements before running. Task evidence ↗

SKILL.md

name: usability-test-plandescription: 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