Records

Methodological context for: Massey I (1723). A short and plain account of inoculation. With some remarks on the main argument made use of to recommend that practice, by Mr. Maitland and others. To which is added, a letter to the learned James Jurin, M.D.R.S. Secr. Col. Reg. Med. Lond. Soc. In answer to his letter to the learned Dr. Cotesworth, and his comparison between the mortality of natural and inoculated small pox. The second edition. London: W. Meadows.

Principles of testing

Why fair tests are needed

 

Comparison

Why comparisons are essential

 

Allocation bias

Differences between the people compared