Topic 3: Research Ethics And Evaluating Quantitative Research Paper

Topic 3: Research Ethics And Evaluating Quantitative Research Paper

Topic 3: Research Ethics and Evaluating Quantitative Research Paper

In statistics, sampling theory is the study of designing and analyzing sample surveys. A key focus of sampling theory is to determine what sample size and what type of sampling method should be used in order to minimize cost while still accurately representing the population. There are two main types of sampling: probability-based sampling and non-probability sampling. Probability-based methods include simple random sampling, systematic sampling, and stratified sampling (Rifkin et al., 2020). Non-probability methods include convenience sampling, quota sampling, and snowball sampling. Simple Random Sampling: Each member of the population has an equal chance or probability of being selected for the sample.

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Systematic sampling is a type of probability sampling technique in which samples are selected from a frame in a systematic way. In contrast to simple random sampling, systematic sampling involves a predetermined selection method (DeVries & Berlet, 2020). This selection method eliminates the need for a statistician to select every nth member of the population. The advantages of systematic sampling include its simplicity and its ability to allow stratified samples to be taken from cheaper-to-reach populations. The main disadvantage of systematic sampling is that it can be susceptible to bias if the frame isn’t random.

Generalizability is the ability of a research study to be applied to a larger population beyond the immediate subjects of the study. When considering generalizability in nursing research, it is important to remember that all research studies are conducted within a specific context and timeframe (Yu et al., 2020). This means that the findings of a study may only be applicable to a similar populations or contexts. For example, a study on new mothers in an urban setting may not be able to be generalized to new mothers in a rural setting. When reading nursing research, it is important to consider the generalizability of the findings in order to determine how applicable they may be to your own practice.

References

DeVries, J. G., & Berlet, G. C. (2020). Understanding levels of evidence for scientific communication. Foot & Ankle Specialist, 3(4), 205-209. https://journals.sagepub.com/doi/abs/10.1177/1938640010375184

Rifkin, W. J., Yang, J. H., DeMitchell-Rodriguez, E., Kantar, R. S., Diaz-Siso, J. R., & Rodriguez, E. D. (2020). Levels of evidence in plastic surgery research: a 10-year bibliometric analysis of 18,889 publications from 4 major journals. Aesthetic Surgery Journal, 40(2), 220-227. https://doi.org/10.1093/asj/sjz156

Yu, J. T., Xu, W., Tan, C. C., Andrieu, S., Suckling, J., Evangelou, E., … & Vellas, B. (2020). Evidence-based prevention of Alzheimer’s disease: systematic review and meta-analysis of 243 observational prospective studies and 153 randomised controlled trials. Journal of Neurology, Neurosurgery & Psychiatry, 91(11), 1201-1209. https://jnnp.bmj.com/content/91/11/1201?s=08

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Topic 3 Discussion 1
Assessment Description
Provide examples of experimental and nonexperimental research designs. Contrast the levels of control applied to each.

Topic 3 Discussion 2

Assessment Description
Describe sampling theory and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research

PLEASE ENSURE THAT CONTENT IS ORIGINAL AND HAS NOT BEEN USED BEFORE. EACH DISCUSSION SHOULD BE 1 PAGE.
EACH DISCUSSION REQUIRES AT LEAST 2 REFERENCES FROM EVIDENCE-BASED ARTICLES. REFERENCES AND FORMATTING SHOULD BE IN APA 7 FORMAT