Figure 4. Selecting Study Designs Assessing the Evidence for Context-Sensitive Effectiveness and Safety Return to Document Current as of December 2010 Internet Citation: Figure 4. Selecting Study Designs: Assessing the Evidence for Context-Sensitive Effectiveness and Safety . December 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/contextsensitive/contextfig4.html