SKILL.md
---
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