research-methods
What each research-methods question is really asking, how to structure the answer, and where the marks are likely to sit.
DQ 2 :Using the “Determining the Appropriate Sample Size,” Topic Material, perform a sample size calculation to determine how large your sample should be
Research methods
The design is paired and the brief says so twice. That changes the arithmetic, because a paired test is powered on the variability of the change scores, not on the variability of the population.
Explain the different types of research methodologies used in the health sciences
Research methods
Forty-two words, two tasks, and the second one is where the post is decided. Survey the methodologies briefly, then commit to one you could genuinely run where you work.
Explain the meanings of reliability and validity as used in the research process.
Research methods
Two terms that students routinely swap. Get the direction right — reliable and wrong is possible, valid and inconsistent is not — then anchor both in equipment you actually use.
Randomisation fails in specific, named ways. Frame error, non-response and undercoverage each break it differently, and each has a different remedy.
Explain each sampling technique discussed in the “Visual Learner: Statistics” in your own words, and give examples of when each technique would be appropriate.
Research methods
Definitions are the easy half. The examples of when each technique is appropriate are what the post is graded on, and the useful ones are clinical.
Explain when a z-test would be appropriate over a t-test.
Research methods
Sixteen words, and the interesting answer is that the honest conditions almost never hold in clinical research. Say what the textbook rule is, then say why you will rarely use it.
DQ 2 : Describe sampling theory and provide examples to illustrate your definition.
Research methods
Sampling theory is the easy half. Generalisability in nursing research is the half that matters, because most nursing studies sample one unit in one hospital and then have to say what that permits.