statistical-power agent skill by K-Dense-AI
Calculates sample sizes and statistical power for study planning. Applies when someone asks "how many subjects/samples/replicates do I need", wants an a priori power analysis, a minimum detectable effect (MDE), a power curve, or needs to justify a sample size for a grant, IRB protocol, or pre-registration. Covers closed-form power for t-tests, ANOVA, proportions, correlations, chi-square, and regression, plus simulation-based (Monte Carlo) power for complex designs — logistic/Poisson regression, mixed models, cluster-randomized trials, survival, and interactions. Also handles requests that only mention an effect size, alpha, or "80% power" without saying "power analysis" explicitly. For laying out the study (randomization, blocking, factorial/DOE, crossover, sequential designs) use experimental-design; for analyzing data already collected and reporting it use statistical-analysis.
Source and license
| Publisher | K-Dense-AI |
|---|---|
| Repository | K-Dense-AI/claude-scientific-skills |
| License | MIT |
| Snapshot | 2026-10-22 |
| Last repository commit | 2026-10-12 |
| Instruction size | 2,272 words; 213 lines |
| Bundled files | 6 |
Suede Skill Check: 90/100 · A
Report snapshot · · graded-v2
The rubric totals 100 points; published scores are capped at 99. Security scan: not scanned.
Source revision: a1043ef544e3. Report version ab401c390db5. Badge URLs follow the latest listing; save the report to keep this version.
Download report · Request a fresh review
What to review next
- Boundary clause: 0 of 4 points. 4 when the description says when not to use the skill (“Not for …”, “Do not use …”, “Use … instead”).
- Description length: 3 of 5 points. 5 for 150–600 characters; 3 for 100–900; 1 for 50–1,024.
Add declarations and bundled files when they describe the skill’s actual needs. Update the source, then request a fresh review with the changed commit or PR.
| Component | Points earned | Available |
|---|---|---|
| Structural checks | 56 | 56 |
| Description length | 3 | 5 |
| Boundary clause | 0 | 4 |
| Example request | 3 | 3 |
| Instruction depth | 7 | 7 |
| Reference files | 3 | 3 |
| Bundled scripts | 2 | 2 |
| Recent maintenance | 9 | 9 |
| Curated-list citations | 3 | 7 |
| Tool permissions declared | 2 | 2 |
| Compatibility declared | 2 | 2 |
The published score is capped at 99. It measures the published files, documentation and maintenance signals. Security scan: not scanned. This assessment does not include a runtime test or a full installation-dependency review.
Install statistical-power
The skills CLI works with Claude Code, Codex, Cursor and other agents; the other routes copy the folder by hand.
npx skills add https://github.com/K-Dense-AI/claude-scientific-skills/tree/main/skills/statistical-powertmp="$(mktemp -d)"
git clone --depth 1 https://github.com/K-Dense-AI/claude-scientific-skills.git "$tmp/repo"
mkdir -p .claude/skills
cp -R "$tmp/repo/"skills/statistical-power .claude/skills/
rm -rf "$tmp"tmp="$(mktemp -d)"
git clone --depth 1 https://github.com/K-Dense-AI/claude-scientific-skills.git "$tmp/repo"
mkdir -p .agents/skills
cp -R "$tmp/repo/"skills/statistical-power .agents/skills/
rm -rf "$tmp"For a user-level install, copy the folder to ~/.claude/skills/ (Claude Code) or ~/.agents/skills/ (Codex). Inside Codex, $skill-installer can also fetch a skill from GitHub. New to skills? Read How to install agent skills in Claude Code, Codex and Cursor.
K-Dense-AI/claude-scientific-skills is third-party code. Read SKILL.md and any bundled scripts before you install it.
Two badges for statistical-power
Choose the numeric badge, the letter badge, or both. Each links to this skill’s Suede AI listing; either valid linked badge can qualify for the feature offer.
[](https://suedeai.directory/k-dense-ai/claude-scientific-skills/statistical-power/)
[](https://suedeai.directory/k-dense-ai/claude-scientific-skills/statistical-power/)<a href="https://suedeai.directory/k-dense-ai/claude-scientific-skills/statistical-power/"><img src="https://suedeai.directory/k-dense-ai/claude-scientific-skills/statistical-power/score.svg" alt="Suede Skill Check: 90/100" width="160" height="175"></a>
<a href="https://suedeai.directory/k-dense-ai/claude-scientific-skills/statistical-power/"><img src="https://suedeai.directory/k-dense-ai/claude-scientific-skills/statistical-power/badge.svg" alt="Suede Skill Check: Grade A" width="160" height="175"></a>Suede Certified on the shield refers to this published structural quality check. Security scan: not scanned. Read the methodology.
Limited-time feature offer: Display either quality badge in your repository or skill README, linked to your listing, then request verification. Suede AI checks the rendered README at a recorded commit. Eligible skills scoring 80–99 with a verified badge can receive a featured placement while the offer is open. Request badge verification.
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