Blog posts by Rafael Perera

Rafael Perera

About Rafael Perera

Rafael Perera is a University Lecturer in Medical Statistics, Co-Director of the NIHR-funded Centre for Monitoring and Diagnosis (MaDOx) and Head of Statistics in the Department of Primary Care Health Sciences at the University of Oxford as well as Director of Research Methodologies at the Centre for Evidence-Based Medicine. Rafael is involved in the teaching of Statistics to undergraduate and graduate students in Oxford; as well as tutoring for the CEBM, and helping the Cochrane UK Centre developing expertise in meta-analysis methods.

Why RCTs are like silver bullets

A common mantra in statistics is that ‘association is not causation’. However, in reality it is causation that we are really interested in when researching a phenomenon in Medicine.
Does A cause B? If I take X will I prevent Y?
These apparently innocuous questions have profound philosophical implications.

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