Records

Methodological context for: Parry CH (1786). Experiments relative to the medical effects of Turkey Rhubarb, and of the English Rhubarbs, No. I and No. II made on patients of the Pauper Charity. Letters and Papers of the Bath Society III:431-453.

Crossover tests (incl. n-of-1)

Why comparisons are essential

 

Allocation bias

Differences between the people compared