By the Everyday Prevention Evidence Team When a health study you're reading about gets a "correction," an "expression of concern," or a "retraction," these are three different things — and they don't …
Why a Study Protocol and the Published Report May Not Match
By the Everyday Prevention Evidence Team What Does It Mean When a Study Protocol Doesn't Match the Published Report? A study protocol is the plan a research team registers on a public database like …
Continue Reading about Why a Study Protocol and the Published Report May Not Match →
What a P-Value Can—and Cannot—Tell You About a Health Study
By the Everyday Prevention Evidence Team What Does a P-Value Actually Mean in a Health Study? A p-value tells you how surprising a study's results would be if there were really no effect at all. It …
Continue Reading about What a P-Value Can—and Cannot—Tell You About a Health Study →
How to Read a ClinicalTrials.gov Record Before You Read the Headline
By the Everyday Prevention Evidence Team What is a ClinicalTrials.gov record, and why check it first? A ClinicalTrials.gov record is the official registry page for a U.S. clinical trial — it lists …
Continue Reading about How to Read a ClinicalTrials.gov Record Before You Read the Headline →
Statistical Significance and Practical Importance: Two Different Questions
By the Everyday Prevention Evidence Team "Statistically significant" doesn't mean a treatment works well or a result matters. It means a study's finding probably wasn't random chance — nothing more. …
Continue Reading about Statistical Significance and Practical Importance: Two Different Questions →
Why the Outcome Measured Matters in a Health Study
By the Everyday Prevention Evidence Team An outcome measure is the specific thing a health study tracks to judge whether something worked — a lab value, a symptom score, a hospital visit rate, or a …
Continue Reading about Why the Outcome Measured Matters in a Health Study →