Assumptions: The reference site is similar enough to the sample location site that it will provide a baseline for comparison. This should be evaluated before implementation of the BMP. Advantages: ...

Woolson, Bean, and Rojas (1986, Biometrics 42, 927-932) present a simple approximation of sample size for Cochran's (1954, Biometrics 10, 417-451) test for detecting association between exposure and ...