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Correlation

Correlation (III): How To Avoid Berkson’s paradox

Published on September 21, 2022 by Hemanth

Correlation (III): How To Avoid Berkson's Paradox - An illustration showing a stick-figure with a chef's hat stirring dough in a pan while holding an engaged look on its face. It is quoted saying "I'm skilled and ethical."
Berkson’s paradox traps researchers into thinking that there is correlation between two variables when there is not. This essay shows how to avoid this trap!
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Correlation (II): How To Spot The Surrogate Endpoint Problem?

Published on September 17, 2022 by Hemanth

Correlation (II): How To Spot The Surrogate Endpoint Problem? - A cartoon illustration showing two stick figures. On the left, a happy stick figure says, "To complete the study, we have to wait for you to die!" On the right, a sad stick figure with a green face seems uncomfortable with the conversation.
More than 130 years after the discovery of correlation, the surrogate endpoint problem is still unsolved. It tricks researchers into making false conclusions.
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Correlation: One Of The Most Misunderstood Concepts In Science

Published on September 5, 2022 by Hemanth

Correlation: One Of The Most Misunderstood Concepts In Science - An illustration featuring a comic, where a stick figure standing behind an announcer table is pointing to a presentation of what appears like linear regression data. The stick figure says, "Here, we see correlation between correlation and causation!"
Correlation is at the heart of scientific discovery. Yet, researchers abundantly misread this term. This essay covers the counter-intuitive math behind it.
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