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Cross Sectional Design

Decent Essays

1. Aiken, Clarke, Sloane, Sochaliski, and Silber (2002) were determined to find a linkage between nursing and patient ratios, patient mortality, and failure to rescue among surgical patients and factors related to RN retention. Given the nature of the research question the type of design most appropriate were a cross-sectional design and that is the design they utilized. According to Polit and Beck (2004) cross-sectional designs is the collection of information or data during a single period of time. They are appropriate for when researcher want to explain the status of a phenomena at a fixed period of time. For Aiken, Clarke, Sloane, Sochaliski, and Silber (2002) the period of time was between April 1, 1998 and November 30, 1999. The design …show more content…

Aiken, Clarke, Sloane, Sochalski, and Silber (2002) study’s protocol was approved by the institutional review board (IRB) of the University of Pennsylvania for the utilization of patient/nurse data. Such board ensures that the study plan meets federal requirements for ethical research including that the risk to participants is minimized, informed consent was required and accurately documented, provisions were conducted to protect the privacy and confidentiality of the data. (Polit & Beck, 2004) The researchers are required to go through formal training on ethical conduct and become certified. The study showcased no signs of coercion, breach of confidentially, or lack of safeness. There are strict guidelines in order to be sponsored by the IRB, therefore it can be said that these researchers took the appropriate step to minimize, prevent and minimize …show more content…

Aiken, Clarke, Sloane, Sochalski, and Silber (2002), in attempt to analyze the patient outcomes, they controlled for the variables in their risk adjustment mode including demographics of patients, nature of admissions, hospital size, teaching status and technology. They employed several analyses that they felt indicated that their conclusions about the effects of staffing and size are similar under various circumstances, which would dismiss there were threats to their external validity. As stated above, the inadequate randomization of the sample shows it still lacked external validity. They however, state that “longitudinal data sets will be needed to exclude the possibility that low hospital nurse staffing is the consequence, rather than the cause, of poor patient and nurse outcomes” (Aiken, Clarke, Sloane, Sochaliski, and Silber 2002, p. 1993). This shows that there were some threats to internal validity which mean the study failed to adequately

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