STSTID Journey FCS 504
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This 1 page Class Notes was uploaded by Delores Kessler on Friday October 23, 2015. The Class Notes belongs to FCS 504 at University of Idaho taught by Laurel Branen in Fall. Since its upload, it has received 26 views. For similar materials see /class/227853/fcs-504-university-of-idaho in Family and Consumer Sciences at University of Idaho.
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Date Created: 10/23/15
FCS 504 Research to Practice Spring 09 Rules for Conducting Research All research involves a balance of the ideal with the feasible Design Randomized clinical trial Potential subjects informed about study and risks Subjects randomly assigned to groups Groups randomly assigned to treatments including the no treatment or control group Subjects observed for a particular outcome Double blind neither researcher nor subjects know who is in which group Blind subjects don t know who is in which group Crossover design Each group serves as a control and as a treatment group eg AB half do control then trt other half trt then control eg ABAB control trt control trt half of groups start with trt Case control retrospective Test hypotheses of causal relationships Select new cases ie people newly diagnosed with celiac disease Subjects matched on key characteristics then controls and cases compared on historical characteristics behaviors experiences Quasi experimental Most often used in education eg not randomly assigned to groups eg one group pretestpost test eg cohort follow up study group of people followed over time tests hypothesis of a causal relationship Selecting Subjects Random sample Strati ed random sample eg rural urban cluster urban ID NV CO CA prevents a particular group from being over represented If case controlled subjects should be matched on appropriate characteristics Study group should be representative of a reference population so results can be generalized Sample of convenience often used cannot infer to population
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