1. The basis for our lesson this week came from the Standards of Practice for Culturally Competent Nursing Care Executive Summary, Transcultural Nursing Society:https://www.tcns.org/standards (Links to an external site.).
Assume your nursing leader has decided that the department needs to better incorporate these Standards of Practice for Culturally Competent Nursing Care into the nursing care delivery model at your organization. There are 12 Standards.
- Download and read the Executive Summary, and select one of the 12 standards as the basis for the discussion. Think about the standards as they relate to culturally sensitive care.
- Explain how your department or organization currently gives credence to this standard.
- If it does not, from your newfound knowledge, offer suggestions of how the standard can be incorporated into patient care in your department or organization.
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2. Confidence Intervals
In everyday terms, a confidence interval is the range of values around a sample statistic (such as mean or proportion) within which clinicians can expect to get the same results if they repeat the study protocol or intervention, including measuring the same outcomes the same ways. As you ask yourself, “Will I get the same results if I use this research?”, you must address the precision of study findings, which is determined by the Confidence Interval. If the CI around the sample statistic is narrow, you can be confident you will get close to the same results if you implement the same research in your practice.
Consider the following example. Suppose that you did a systematic review of studies on the effect of tai chi exercise on sleep quality, and you found that tai chi affected sleep quality in older people. If, according to your study, you found the lower boundary of the CI to be .49, the study statistic to be 0.87, and the upper boundary to be 1.25, this would mean that each end limit is 0.38 from the sample statistic, which is a relatively narrow CI.
(UB LB)/2 = Statistic [(1.25 .49)/2 = .87]
Keep in mind that a mean difference of 0 indicates there is no difference; this CI does not contain 0. Therefore, the sample statistic is statistically significant and unlikely to occur by chance.
Because this was a systematic review, and tai chi exercise has been established from the studies you assessed as helping people sleep, based on the sample statistics and the CI, clinicians could now use your study and confidently include tai chi exercises among possible recommendations for patients who have difficulty sleeping.
Now you can apply your knowledge of CIs to create your own studies and make wise decisions about whether to base your patient care on a particular research finding.
Initial Post Instructions
Thinking of the many variables tracked by hospitals and doctors’ offices, confidence intervals could be created for population parameters (such as means or proportions) that were calculated from many of them. Choose a topic of study that is tracked (or that you would like to see tracked) from your place of work. Discuss the variable and parameter (mean or proportion) you chose, and explain why you would use these to create an interval that captures the true value of the parameter of patients with 95% confidence.
Consider the following:
How would changing the confidence interval to 90% or 99% affect the study? Which of these values (90%, 95%, or 99%) would best suit the confidence level according to the type of study chosen? How might the study findings be presented to those in charge in an attempt to affect change at the workplace?
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Example :School Bond for constructing a new building
Pre-Election polling has the voters approving at 52%
WITH a MARGIN OF ERROR (E) of 4%
Should the school district start digging?? no—–Why????
Confidence Interval–Given the Sample Data and Margin of Error, where might the results land???
(52 – 4, 52 4) = (48, 56)—–at 48%, the bond does not pass. At 56%, it passes easily.
(x -E, x E) x = sample mean E = Margin of Error
Confidence Level, which has to do with precision, will affect the size or width of the Confidence Interval.