Testing Treatments international
Promoting critical thinking about treatment claims
Gilbert Welch’s 9-min video on how 95% confidence intervals relate to p values.
Gilbert Welch’s 9-min video on how 95% confidence intervals relate to p values, and their value in interpreting so called ‘negative studies’.
Gilbert Welch’s 10-min video on p-values and assessing the likelihood that a difference between treatments is due to chance.
Gilbert Welch’s 12-min video explaining Type I and Type II errors, and how statistical tests can be misleading.
GET-IT provides plain language definitions of health research terms