Margaret A. Handley|Courtney R. Lyles|Charles E. McCulloch|Adithya Cattamanchi
Selecting and Improving Quasi-Experimental Designs in Effectiveness and Implementation Research
San Francisco General Hospital|University of California, San Francisco|San Francisco General Hospital|University of California, San Francisco|University of California, San Francisco|San Francisco General Hospital|University of California, San Francisco
interventional researchers face many design challenges assessing intervention implementation realworld settings intervention implementation requires holding fast internal validity needs incorporating external validity considerations uptake diverse subpopulations acceptability cost sustainability quasiexperimental designs qeds increasingly employed achieve balance internal external validity although designs often referred summarized terms logistical benefits still uncertainty selecting among various qeds b developing strategies strengthen internal external validity qeds focus commonly used qeds prepost designs nonequivalent control groups interrupted time series steppedwedge designs discuss several variants maximize internal external validity design execution implementation analysis stages