Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content +++ Introduction ++ Table Graphic Jump Location|Download (.pdf)|Print RESEARCH QUESTION CHART Is there a difference between means (or medians)? 1 independent variable: 2 levels 1 independent variable: ≥3 levels 2 or more independent variables B1 B2 B3 Is there a difference in proportions? B4 Is there an association between variables? B5 Is there a predictive relationship between variables? B6 Are measurements reliable? B7 ++ ++ ++ ++ ++ ++ Your Access profile is currently affiliated with '[InstitutionA]' and is in the process of switching affiliations to '[InstitutionB]'. Please click ‘Continue’ to continue the affiliation switch, otherwise click ‘Cancel’ to cancel signing in. Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth