Study Designs and Their Outcomes
© Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC CHAPTERNOT FOR SALE 3 OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION © JonesStudy & Bartlett Designs Learning, LLC and Their Outcomes© Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION “Natural selection is a mechanism for generating an exceedingly high degree of improbability.” —Sir Ronald Aylmer Fisher Peter Wludyka © Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION OBJECTIVES ______________________________________________________________________________ • Define research design, research study, and research protocol. • Identify the major features of a research study. • Identify© Jonesthe four types& Bartlett of designs Learning,discussed in this LLC chapter. © Jones & Bartlett Learning, LLC • DescribeNOT nonexperimental FOR SALE designs, OR DISTRIBUTIONincluding cohort, case-control, and cross-sectionalNOT studies. FOR SALE OR DISTRIBUTION • Describe the types of epidemiological parameters that can be estimated with exposed cohort, case-control, and cross-sectional studies along with the role, appropriateness, and interpreta- tion of relative risk and odds ratios in the context of design choice. • Define true experimental design and describe its role in assessing cause-and-effect relation- © Jones &ships Bartlett along with Learning, definitions LLCof and discussion of the role of ©internal Jones and &external Bartlett validity Learning, in LLC NOT FOR evaluatingSALE OR designs. DISTRIBUTION NOT FOR SALE OR DISTRIBUTION • Describe commonly used experimental designs, including randomized controlled trials (RCTs), after-only (post-test only) designs, the Solomon four-group design, crossover designs, and factorial designs.
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