observationalBlocks: Block Designs for Observational Studies
Creates block designs of fixed size J with at least one treated
and control unit per block. Blocks larger than pairs better
distinguish effects caused by a treatment from unmeasured confounding in
assignment of individuals to treatment. Somewhat counterintuitively,
blocks larger than pairs can use more units while attaining better
covariate balance and block homogeneity. A forthcoming manuscript
by Brumberg and Rosenbaum details the design.
[aut, cre],
Paul Rosenbaum [aut]