NR 714 Discussion Metasynthesis And Meta-Analysis
NR 714 Discussion Metasynthesis And Meta-Analysis
WE WRITE ESSAYS FOR STUDENTS
Tell us about your assignment and we will find the best writer for your project
Write My Essay For MeDQ1 Qualitative versus Quantitative Research Methods and
Analysis
Derived from your healthcare experience, determine the utility
in differentiating qualitative from quantitative research methods and analysis
from an advanced nursing practice perspective.
DQ2 Metasynthesis versus Meta-Analysis Measurement and
Monitoring
Derived from your healthcare experience, determine the
utility in differentiating metasynthesis from meta-analysis measurement and
monitoring from an advanced nursing practice perspective.
Meta-analyses of randomized controlled trials (RCTs) are at the pinnacle of traditional evidence hierarchies for Therapy questions (see Fig. 2.1). The essence of a meta-analysis is that findings from each study are used to compute a common index, an effect size. Effect size values are averaged across studies, yielding information about the relationship between variables across multiple studies.
Advantages of Meta-Analyses
Meta-analysis offers a simple advantage as an integration method: objectivity. It is difficult to draw objective conclusions about a body of evidence using narrative methods when results are inconsistent, as they often are. Narrative reviewers make subjective decisions about how much weight to give findings from different studies, and so different reviewers may reach different conclusions in reviewing the same studies. Meta-analysts make decisions that are explicit and open to scrutiny. The integration itself also is objective because it uses statistical formulas. Readers of a meta-analysis can be confident that another analyst using the same data set and analytic decisions would come to the same conclusions.
Click here to ORDER an A++ paper from our Verified MASTERS and DOCTORATE WRITERS:NR 714 Discussion Metasynthesis And Meta-Analysis
NR 714 Discussion Metasynthesis And Meta-Analysis
Another advantage of meta-analysis concerns power, i.e., the probability of detecting a true relationship between variables (see Chapter 14). By combining effects across multiple studies, power is increased. In a meta-analysis, it is possible to conclude that a relationship is real (e.g., an intervention is effective), even when several small studies yielded nonsignificant findings. In a narrative review, 10 nonsignificant findings would almost surely be interpreted as lack of evidence of a true effect, which could be the wrong conclusion.
Despite these advantages, meta-analysis is not always appropriate. Indiscriminate use has led critics to warn against potential abuses.
Criteria for Using Meta-Analytic Techniques in a Systematic Review
Reviewers need to decide whether statistical integration is suitable. A basic criterion is that the research question should be nearly identical across studies. This means that the independent and dependent variables, and the study populations, are sufficiently similar to merit integration. The variables may be operationalized differently to be sure. Nurse-led interventions to promote healthy diets among diabetics could be a 4-week clinic-based program in one study and a 6-week home-based intervention in another, for example. However, a study of the effects of a 1-hour lecture to discourage eating “junk food” among overweight adolescents would be a poor candidate to include in this meta-analysis. This is frequently referred to as the “apples and oranges” or “fruit” problem. Meta-analyses should not be about fruit— i.e., a broad category—but rather about “apples,” or, even better, “Granny Smith apples.”
Another criterion concerns whether there is a sufficient knowledge base for statistical integration. If there are only a few studies or if all of the studies are weakly designed, it usually would not make sense to compute an “average” effect.
One other issue concerns the consistency of the evidence. When the same hypothesis has been tested in multiple studies and the results are highly conflicting, meta-analysis is likely not appropriate. As an extreme example, if half the studies testing an intervention found benefits for those in the intervention group, but the other half found benefits for the controls, it would be misleading to compute an average effect. In this situation, it would be better to do an in-depth narrative analysis of why the results are conflicting.
NR714 Discussion Metasynthesis And Meta-Analysis ESSAY
DO MY HOMEWORK NOW!Write my Essay. Premium essay writing services is the ideal place for homework help or essay writing service. if you are looking for affordable, high quality & non-plagiarized papers, click on the button below to place your order. Provide us with the instructions and one of our writers will deliver a unique, no plagiarism, and professional paper.
Get help with your toughest assignments and get them solved by a Reliable Custom Papers Writing Company. Save time, money and get quality papers. Buying an excellent plagiarism-free paper is a piece of cake!
All our papers are written from scratch. We can cover any assignment/essay in your field of study.
