Testing Treatments interactive
Promoting critical thinking about treatment claims
Gilbert Welch’s 14-min video discussing the risks of overdiagnosis bias and screening.
Gilbert Welch discusses overdiagnosis bias in this 14 minute video, and explains why survival ALWAYS rises following early detection — even if no one is helped (https://www.youtube.com/watch?v=s7QNhE59s9Q).
Overdiagnosis bias is one of two explanations for why survival statistics (e.g. median survival, 5-year survival, 10-year survival) can be so misleading.
The other explanation is lead-time bias, which can be viewed at http://en.testingtreatments.org/lead-time-bias/
Iain Chalmers talks about failings in scientific research that lead to avoidable harm to patients and waste of resources.
This video and animated slide presentation prepared by Steven Woloshin shows how the Cochrane logo was developed, and what it tells us.
GET-IT provides plain language definitions of health research terms