Learn to Count Critical Analysis

Critical analysis means evaluating numbers skeptically. When a study reports "exercise increases happiness by 40%," a critical thinker asks: 40% of what? Sample size? Who funded the study? Was there a control group? Was happiness measured validly? Critical analysis is how we tell real insights from noise.

The 5 questions of critical analysis: (1) Source credibility — who says? (2) Sample quality — who was measured? (3) Method validity — how measured? (4) Statistical rigor — significant or coincidence? (5) Conflict of interest — who benefits? Run every claim through these 5 filters.

Claim: "New supplement boosts brain by 50%!" Source: the supplement maker (red flag). Sample: 20 people (too small!). Method: self-reported energy (not objective). Statistical rigor: no p-value given (suspicious). Conflict: seller pays for study. Verdict: skeptical claim.

Many health, diet, and consumer product claims fail critical analysis. But real science (like gravity, evolution, climate change) holds up under scrutiny because it has been tested many ways by many independent researchers. Critical thinking protects you from misinformation.