andyzhuang/skills/labclaw/general/statistics
skills/labclaw/general/statistics/SKILL.md
# Statistical Analysis & Quality Control ## Overview Comprehensive statistical methodology for scientific research. Covers test selection, assumption verification, power analysis, effect size reporting, and reporting standards. ## Test Selection Guide | Data Type | Groups | Paired? | Normal? | Recommended Test | |-----------|--------|---------|---------|-----------------| | Continuous | 2 | No | Yes | Independent t-test | | Continuous | 2 | No | No | Mann-Whitney U | | Continuous | 2 | Yes |
$ install --global
skillsauthnpx skillsauth add andyzhuang/openlife skills/labclaw/general/statisticsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 4, 2026, 4:42 AM4.7s1 file scanned
SKILL.md
Statistical Analysis & Quality Control
Overview
Comprehensive statistical methodology for scientific research. Covers test selection, assumption verification, power analysis, effect size reporting, and reporting standards.
Test Selection Guide
| Data Type | Groups | Paired? | Normal? | Recommended Test | |-----------|--------|---------|---------|-----------------| | Continuous | 2 | No | Yes | Independent t-test | | Continuous | 2 | No | No | Mann-Whitney U | | Continuous | 2 | Yes | Yes | Paired t-test | | Continuous | 2 | Yes | No | Wilcoxon signed-rank | | Continuous | 3+ | No | Yes | One-way ANOVA + post hoc | | Continuous | 3+ | No | No | Kruskal-Wallis + Dunn | | Continuous | 3+ | Yes | Yes | Repeated measures ANOVA | | Categorical | 2x2 | — | — | Chi-square / Fisher's exact | | Time-to-event | 2+ | — | — | Log-rank + KM curves | | Time-to-event | Adjusted | — | — | Cox proportional hazards | | Continuous | Prediction | — | — | Linear/logistic regression |
Assumption Checks
- Normality: Shapiro-Wilk (n < 50), Kolmogorov-Smirnov (n > 50), Q-Q plot visual
- Homoscedasticity: Levene's test, Bartlett's test
- Independence: study design review (not a statistical test)
- Proportional hazards: Schoenfeld residuals, log-log plot
Multiple Comparison Correction
- Bonferroni: conservative, for few comparisons
- Holm-Bonferroni: step-down, less conservative than Bonferroni
- FDR (Benjamini-Hochberg): for many comparisons (e.g., genomics)
- Tukey HSD: for all pairwise comparisons after ANOVA
Effect Size Guidelines
| Measure | Small | Medium | Large | |---------|-------|--------|-------| | Cohen's d | 0.2 | 0.5 | 0.8 | | Pearson r | 0.1 | 0.3 | 0.5 | | Odds Ratio | 1.5 | 2.5 | 4.3 | | R-squared | 0.02 | 0.13 | 0.26 |
Reporting Standards
- Always report: test statistic, degrees of freedom, exact p-value, effect size, 95% CI
- Follow STROBE (observational), CONSORT (RCTs), PRISMA (reviews), ARRIVE (animal)
- Never say "trend toward significance" for p > 0.05
- Report non-significant results honestly
Related Skills
andyzhuang/clinical-trials-search
tools
VerifiedTrustedCommunity
Search ClinicalTrials.gov with natural language queries. Find clinical trials, enrollment, and outcomes using Valyu semantic search.
26SKILL.mdUpdated Apr 4, 2026
andyzhuang/citation-management
development
VerifiedTrustedCommunity
Comprehensive citation management for academic research. Search Google Scholar and PubMed for papers, extract accurate metadata, validate citations, and generate properly formatted BibTeX entries. This skill should be used when you need to find papers, verify citation information, convert DOIs to BibTeX, or ensure reference accuracy in scientific writing.
26SKILL.mdUpdated Apr 4, 2026
andyzhuang/bioservices
development
VerifiedTrustedCommunity
Unified Python interface to 40+ bioinformatics services. Use when querying multiple databases (UniProt, KEGG, ChEMBL, Reactome) in a single workflow with consistent API. Best for cross-database analysis, ID mapping across services. For quick single-database lookups use gget; for sequence/file manipulation use biopython.
26SKILL.mdUpdated Apr 4, 2026
andyzhuang/biorxiv-search
tools
VerifiedTrustedCommunity
Search bioRxiv biology preprints with natural language queries. Semantic search powered by Valyu.
26SKILL.mdUpdated Apr 4, 2026