Propensity Scoring | Understanding Medical Research

Propensity scoring is a statistical method for handling confounding by indication, the problem that people who get a drug differ from people who do not. This video covers the four-step process, a real statin study where the result reversed after matching, and the limits that only randomization overcomes. Chapters: 00:00 Propensity scoring 00:49 Guessing students from their clothes 03:45 What a propensity score predicts 05:14 Confounding by indication 06:32 The four-step process 07:37 Propensity scores versus matching 09:36 Statins and heart attacks 12:03 Interpreting propensity results 13:50 Limitations and take-home points Learning objectives: After watching, you'll be able to: - Explain what a propensity score is and how it addresses confounding by indication - Compare propensity score matching with conventional matching and multivariable adjustment - Critique a propensity-matched study that claims to be interpretable like a randomized trial 📺 Watch the full playlist on YouTube: https://www.youtube.com/playlist?list=PLh9mgdi4rNewVyTec_MVGxIbNSEeMhEsZ 🎓 Enroll on Coursera for assessments and a certificate: https://www.coursera.org/learn/medical-research 🌐 Explore more learning opportunities on Yale Online: https://online.yale.edu/courses/understanding-medical-research-your-facebook-friend-wrong