Sections View Full Chapter Figures Tables Videos Full Chapter Figures Tables Videos Supplementary Content +++ INTRODUCTION ++ Table Graphic Jump LocationFavorite Table | Download (.pdf) | Print Research Question Refer to Chart Is there a difference between means (or medians)? 1 independent variable, 2 levels B1 1 independent variable, ≥ 3 levels B2 2 or more independent variables 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 ++ ++ ++ ++ ++ ++ GET ACCESS TO THIS RESOURCE Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Username? Forgot Password? Sign in via OpenAthens Sign in via Shibboleth Get Free Access Through Your Institution Contact your institution's library to ask if they subscribe to McGraw-Hill Medical Products. Access My Subscription