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Explore sample bias analysis reports. Each example showcases different aspects of our comprehensive methodology assessment.
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The Retraction Landmine: Wakefield MMR/Autism Study
The infamous 1998 paper that sparked the anti-vaccine movement. Fully retracted for fraud, data fabrication, and ethical violations. Shows how Paper Integrity catches retracted papers.
The Replication Failure: Ego Depletion Study
Highly influential psychology paper (7,000+ citations) whose findings failed to replicate in large pre-registered studies. A cautionary tale of small-sample research.
The Hidden Conflict: VIGOR/Vioxx Trial
Landmark pharma trial that downplayed cardiovascular risks. NEJM issued an Expression of Concern. Vioxx was later withdrawn after causing ~100,000 heart attacks.
The Methodology Minefield: Power Posing Study
Famous 'power pose' study claiming 2-minute poses change hormones. Lead author has publicly disavowed it. Hormonal findings failed to replicate.
The Preprint Pitfall: Surgisphere HCQ Study
Fraudulent COVID-19 study claiming hydroxychloroquine harm. Data came from a company whose database likely never existed. Retracted within 2 weeks.
The Gold Standard: RECOVERY Trial
Exemplary COVID-19 trial showing dexamethasone saves lives. Large, pre-registered, independent, transparent. This is what high-quality evidence looks like.