Evaluating Design Choice and Threats to Validity in a Quasi-Experimental Design
Order Instructions:
Being a critical researcher requires practice and thought into the reasoning behind various research design choices. In this Discussion, you will consider a quasi-experimental design used in a study within your discipline and evaluate it for its appropriateness and any potential flaws it has that may have impacted the research.

To prepare for this Discussion:

• Review Chapter 6, “Research Designs: Cross-Sectional and Quasi-Experimental Designs” in Research Methods in the Social Sciences.

• Review the assigned article for your program within the Research Articles document located in the Learning Resources. Evaluate the choice of the design used in the assigned article. Why was that design used and not another one? Assess the authors’ performance in explaining this.

• What are the types of validity presented and the critical differences among them? Assess the authors’ performance in explaining them.

• How would you assess the study’s validity? What information would you need in order to be able to do, and is that information present in the article?

With these thoughts in mind:

Post by Day 3 a 3-paragraph evaluation of the choice of design and threats to validity in a quasi-experimental design. Your response should include an evaluation of the choice of design, the author’s rationale for the design choice, the types of validity presented and the critical differences among them, the author’s performance in explaining them, and how you would assess the study’s validity and the information you would require to do so.
ANSWER THE FOLLOWING QUESTIONS THREE PARAGRAPHS ONLY:

1. Evaluation of the choice of design and threats to validity in a quasi-experimental design, the author’s rationale for the design choice,

2. The types of validity presented and the critical differences among them, the author’s performance in explaining them, and

3. How you would assess the study’s validity and the information you would require to do so.
USE THIS RESOURCE RESEARCH ARTICLE ONLY:

Week 3: Quasi-Experimental Designs

Bartholomew, J., Miller, B., Ciccolo, J., Atwood, R., & Gottlieb, N. (2008). Walk
Texas! 5-a-day intervention for Women, Infants, and Children (WIC) clients: A quasi-experimental study. Journal of Community Health, 33, 297–303.

Use the ProQuest Central database and search using the article’s Document ID: 1537747971.

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