WGU C431 Healthcare Research & Statistics Quiz Already solved 100%

When the subjects in a study are not representative of the population, this is a limitation referred to as ___. A. measurement error B. probability bias C. sampling bias D. recall bias E. publication bias Ans C. sampling bias When the determination of whether to publish a study is based on factors other than the quality of the research and the relevance of its findings. A. measurement bias B. publication bias C. sampling bias D. representativeness bias E. lack of clinical significance bias Ans B. publication bias An observational study that is large in size and longitudinal in duration. The groups in the study are determined by a given exposure, characteristic, or risk factor. A. Randomized control trial B. Cohort study C. Systematic review D. Cross-over study Ans B. Cohort study A prospective study in which patients are moved from one group to another. They are in the control group for a period of time and then be moved to one or more treatment groups. Subjects remain in each group long enough to determine the effect of the given treatment. A. Randomized control trial B. Cohort study C. Systematic review D. Cross-over study Ans D. Cross-over study A research procedure in which all prior studies on a given topic are brought together and analyzed collectively. A. Randomized control trial B. Cohort study C. Systematic review D. Cross-over study Ans C. Systematic review A study in which the allocation of patients to treatment or control groups is random and concealed. At least one control group must be utilized. Preferably patients, as well as providers, are not informed (blinded) regarding which intervention patients receive. A. Randomized control trial B. Cohort study C. Systematic review D. Cross-over study Ans A. Randomized control trial Researchers strive to remain unbiased, honest, and precise when making decisions regarding the planning, conducting, and reporting of a quantitative and qualitative study. The previous statement defines A. Validity B. Reliability C. Objectivity D. Credibility E. Dependability Ans C. Objectivity Identify the characteristic of research design that relates to the degree to which the outcomes of the study can be attributed to the interventions. A. Inter-rater reliability B. Intra-rater reliability C. External validity D. Internal validity E. Randomization Ans D. Internal validity