Understanding Nursing Research Essay

Understanding Nursing Research Essay

1. Provide examples of experimental and nonexperimental research design. Contrast the levels of control applied to each. 2. Describe sampling theory and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research. Please provide 2 peer reviewed journal references for each question. Understanding Nursing Research Essay.

Provide examples of experimental and nonexperimental research design. Contrast the levels of control applied to each.

Experimental research is where a researcher can have compelling proof of a connection between trigger and impact. This is achieved by showing that manipulations of a variable known as treatment variable, yield various effects in a related variable, which is referred to as a dependent variable (Grove, Gray & Burns, 2014). The investigator requires an experimental group and a control group in experimental research, and one particular variable that can be conveniently modified to confirm the study. The medication, treatment, or intervention is not obtained by the control group but is obtained by the experimental group. All group members normally conduct a pre-test and post-test to obtain the findings. In this sort of study, drug testing is a prime illustration.

Non-experimental research comprises variables in a study that are not controlled by the researcher but examined as they occur instead. A rationale for utilizing non-experimental research is that it is not possible to modify certain variables of concern in science since they are category variables such as mode of learning, socioeconomic class, gender, or some other individual trait or feature. An instance is that, since they are naturally occurring characteristics, a researcher should not randomly position participants in different categories centered on learning style or gender. A researcher depends on perception, evaluation, or experiences in non-experimental studies to infer. Usually, this suggests that the non-experimental researcher needs to depend on case studies, surveys, or associations and does not prove a vital connection between cause and impact (Reio, 2016).


The key distinction is that researchers can perform studies on individuals and modify the variables in experimental research; however non-experimental research forces the researcher to analyze and evaluate what is noted.Understanding Nursing Research Essay.  It cannot be said with utter surety by non-experimental researchers that X results in Y. This may be that certain aspects could not be observed.

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

The Sampling theory includes an analysis of correlations between samples and a population obtained from the population. Researchers must take into account to the greatest extent possible the sample to be reflective of the target population when conducting a study, with the minimum potential defect without any replacement or inadequacy. The sampling method refers to the mechanism of choosing a population sample from the target group. Sampling methods exist in two main groups: probability sampling methods in which all individuals in the target population own fair opportunities of being included in the study; and non-probability sampling methods in which the sample population is chosen in a non-systematic manner which does not ensure fair opportunities for all individuals in the target group. The sample chosen through probability sampling techniques are much more reflective of the target group (Elfil & Negida, 2017)


An illustration of probability sampling theory would be the performance of a study on hypertensive patients and the advantages of regular patient weight monitoring. Patients with hypertension are unique, but their age, ethnicity, and gender are arbitrary. In other institutions, this analysis can be replicated to expand the sample group. The composite research findings will then be extended to a broad target group of all patients suffering from hypertension. An illustration of the nonprobability sampling would be to perform a tele-floor study of all clients to assess if the level of noise during nighttime on the facility was alarming. Since various facilities possess different factors and client expectations can be unique, this study cannot be extended to a wider population (Polit & Beck, 2010).

Generalizability refers to a situation where a researcher applies to the wider population their study results and assumptions from a population sample. When the sample population is strongly reflective of the wider population, generalizability is valid. Understanding Nursing Research Essay. 


Elfil, M., & Negida, A. (2017). Sampling methods in clinical research; an educational review. Emergency, 5(1).

Grove, S., Gray, J., & Burns, N. (2014). Understanding nursing research: Building an evidence-based practice (6th ed.). Maryland Heights, MO: Elsevier.

Polit, D. F., & Beck, C. T. (2010). Generalization in quantitative and qualitative research: Myths and strategies. International journal of nursing studies47(11), 1451-1458.

Reio, T. G. (2016). Nonexperimental research: Strengths, weaknesses and issues of precision. European Journal of Training and Development. Understanding Nursing Research Essay.