<skill_content>
<overview> Core methodology establishes the fundamental principles of rigorous statistical analysis. These principles protect against errors that have invalidated countless published studies and ensure reproducibility. This skill is ALWAYS loaded because its requirements apply to every analysis.These are not suggestions - they are mandatory safeguards developed from decades of statistical failures and corrections. </overview>
<mandatory_requirements>
<requirement priority="c
[Description truncada. Veja o README completo no GitHub.]