An Explanatory Quantitative Methodology Utilizing A Multisite, Cluster Randomized Control Trial ( Rct )

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The proposed study implements an explanatory-quantitative methodology utilizing a multisite, cluster-randomized control trial (RCT) to evaluate the effectiveness of daily CHG bathing on the reduction in healthcare-associated bloodstream infections in patients on a medical-surgical unit. Explanatory-quantitative research provides a systematic, objective approach to investigate, measure, and analyze the relationship between the variables (Langford & Young, 2013). A RCT follows a true experiment design using a large sample and multiple sites permitting manipulation of an independent variable, the use of a control group, and randomization of subjects (Langford & Young, 2013). RCTs allow for the generating of groups that are relatively…show more content…
The independent variable for this proposed experiment is daily bathing with CHG impregnated washcloths and the dependent variable is the incidence of hospital-acquired bloodstream infections. Extraneous variables that may affect the dependent and independent variables include demographics, patient health history, healthcare personnel compliance of hand hygiene and contact precautions, incoming visitors, microorganism susceptibility to CHG, and patient’s length of stay.
Population, Sample Design, and Generalizability The target population of the proposed study is adult patients, admitted into a medical-surgical unit at an acute care hospital, at risk for acquiring healthcare-associated bloodstream infections. The study uses a probability sampling design to make certain that samples are mathematically representative of the population (Langford & Young, 2013). The population of interest and use of a variety of geographic sites requires groups of patients rather than individual patients to be randomized, thereby calling for the use of cluster sampling. Cluster sampling allows for division of the population into groups, in this case acute care hospitals in different geographic regions, then a simple random sample from participating hospitals will be selected as either the control or intervention unit, followed by a collection of data from every sampling unit. Each sampling unit will include all adult patients admitted
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