Topic 3: Research Ethics And Evaluating Quantitative ResearchJan 23-29, 2023Max Points:238
Objectives:
- Evaluate the components of a quantitative research study.
- Compare different types of quantitative designs.
- Contrast levels of control between experimental and nonexperimental research designs.
- Describe sampling theory.
Assessment Description
Question 1) Provide examples of experimental and nonexperimental research design. Contrast the levels of control applied to each.with intext citation and references within 5years
Question 2)Describe sampling theory and provide examples to illustrate your definition. Discuss generalizability as it applies to nursing research..with intext citation and references within 5years
Expert Solution Preview
Introduction:
In this assignment, we will be evaluating the components of a quantitative research study, comparing different types of quantitative designs, contrasting levels of control between experimental and nonexperimental research designs, describing sampling theory, and discussing generalizability as it applies to nursing research.
Question 1:
Experimental research design involves manipulating an independent variable to observe its effect on a dependent variable. Nonexperimental research design, on the other hand, does not involve manipulating an independent variable. Examples of experimental research design include randomized controlled trials, quasi-experimental studies, and single-subject designs, while examples of nonexperimental research design include surveys, correlational studies, and observational studies. Experimental research design offers a high level of control as researchers manipulate the independent variable and assign participants to different conditions. Nonexperimental research design, on the other hand, offers a lower level of control as researchers cannot manipulate the independent variable or assign participants to different conditions.
References:
Polit, D. F., & Beck, C. T. (2017). Nursing research: Generating and assessing evidence for nursing practice (10th ed.). Wolters Kluwer.
Question 2:
Sampling theory refers to the process of selecting a representative sample from a population to generalize the findings of a study. There are two types of sampling methods: probability and nonprobability sampling. Probability sampling involves random selection of participants from a population, ensuring that each participant has an equal chance of being selected. Examples of probability sampling techniques include simple random sampling, stratified random sampling, and cluster sampling. Nonprobability sampling, on the other hand, does not involve random selection and cannot guarantee sampling representativeness. Examples of nonprobability sampling include convenience sampling, quota sampling, and snowball sampling.
Generalizability refers to the extent to which research findings can be applied to a larger population. In nursing research, generalizability is important as it allows us to apply research findings to other contexts and settings. The generalizability of a study depends on various factors such as sample size, sampling method, and study design.
References:
Polit, D. F., & Beck, C. T. (2017). Nursing research: Generating and assessing evidence for nursing practice (10th ed.). Wolters Kluwer.