Understanding False Positive COVID Screening Results
When does a positive COVID test mean you probably don’t have COVID? Fun with Bayes’ Rule.
statistics
Supplement on Emergency Contraception Effectiveness
In my post on contraception, I mentioned emergency contraception only in passing, as something that was out of scope, but it’s come to my attention t...
Understanding Percentages
Figures expressed in percentages are ubiquitous, and interpreting and doing calculations with them is an important part of the basic mathematical lit...
Understanding the Long-Term Risks of Contraceptive Failure
Our data on contraceptive failure is terrible, and our education is worse. How can we as individuals improve our chances of avoiding unintended pregnancies?
Gather Information
It is impossible to solve a problem without some kind of information about the problem.
