Section: Module 3: Lesson 1: Quantitative Study Designs | Research Methods for Health Sciences | NextGenU.org

  • Student Learning Outcomes:
    • Understand the hierarchies of quantitative study designs.
    • Understand the levels of evidence based on study designs.
    • Describe the concept and classification of descriptive study designs.
    • Discuss the strengths and weaknesses of descriptive study designs such as cross-sectional studies, case reports, and case series.
    • Select a descriptive study design to address a given research question.
    • Describe the concept and classification of analytic study designs, including observational and experimental studies.
    • Break down the different observational study designs (cross-sectional, case-control, and cohort studies).
    • Describe the concept of quasi-experimental studies.
    • Describe the concepts of randomization and experimental study designs.
    • Examine the different types of clinical trials.
    • Discuss the strengths and weaknesses of common observational and analytical study designs.
    • Select a quantitative study design to address a given research question.
    Approximate time required to complete the readings (at 144 words/minute) and assignments for this module: 7 hours and 56 minutes.

    Click here to start this lesson

    • Required Learning Resources and Activities
    • Read the entire document. (16 minutes)

      Australian Journal of Advanced Nursing - 2016

    • Read the entire document. (8 minutes)

      Walden University - 2021

    • Read the section under overview of the design tree. (8 minutes)

      University of Oxford - 2009

    • Read the entire article. (15 minutes)

      Journal of Health Specialties - 2015

    • Read the entire article. (12 minutes)

      Perspectives in Clinical Research - 2019

    • Read the entire article EXCEPT for these sections: Standards of research and reporting and Conclusion. (35 minutes)

      Biochemia Medica - 2014

    • Read the content under cross-sectional, case-control design and cohort stduy design. (32 minutes)

      HealthKnowledge - 2018

    • Read the following components of the Review section: Cross-sectional, Case-control, and cohort studies. (6 minutes)

      Cureus Journal of Medical Science - 2020

    • Read pages 6-11 of the manuscript. (19 minutes)

      Journal of Clinical Epidemiology - 2017

    • Read entire page including the hyperlinked page: Random Assignment. (8 minutes)

      Office of Research Integrity by U.S. Department of Health and Human Services - 2017

    • Read the entire page. (17 minutes)

      American Cancer Society - 2021

    • In this activity, you will analyse a given set of research questions and will discuss the strengths and weaknesses of studying one of the questions with at least 2 types of descriptive and analytical study designs.

      Step 1: Review

      Review the learning resources for this lesson.

      Step 2: Analyze

      Analyze the following research questions:

      1. Is there a correlation between diet and stomach cancer survival in people aged 50-65?
      2. How effective is immunotherapy in the fight against breast cancer?
      3. What are the perceptions of residents in rural communities about vaccinations?
      4. Are middle/low-income countries more likely to have low rates of COVID vaccine uptake?
      5. Was there an increase in mental health disorders as a result of lockdown measures imposed in Italy between March and May 2020?

      Step 3: Respond

      • Select one question from the list above.
      • Write a post of 250-350 words in which you:
        1. Choose at least 2 types of study designs (descriptive and/or analytical) that can be used to answer this question.
        2. Discuss the strengths and weaknesses of utilizing each study design to answer the research question.

      Step 4: Share

      To share your work, click on the “Reply” button under this post and paste your work in the “Message” box. Make sure to reference others’ intellectual property when necessary. All references should follow 7th Edition APA formatting. For further instructions, see the resource on the Himmelfarb Health Sciences Library: APA citation resource (N.B. references are excluded from word counts).

      OPTIONAL Step 5: Interact (10 minutes)

      If you would like to, you can reply to your peers' posts in a respectful and professional manner. Ensure that your post engages your peers' ideas by including a reflection on their comments, sharing ideas of other potential difficulties and parties involved, or asking thought-provoking questions. If a peer comments on your posting, please reply. To post a reply, click “Reply” on a particular discussion, write your feedback and then click on “Post to forum.”

    • In this activity, you will continue to build upon previous work by selecting a study design for the quantitative component of your research proposal.

      Step 1: Review

      Review the research questions which you wrote in Module 2 Lesson 1. Select the quantitative question(s).

      Step 2: Respond

      Choose the best quantitative study design which will help you to answer the question(s). Write a 200-350 word post in which you:

      • Summarize the selected design for the chosen questions
      • Give a rationale for its selection

      Step 3: Self-Analysis and Enhancement

      Before you submit, engage in an introspective self-analysis by systematically reviewing each component of your work. Reflect on what aspects of your work were executed well and what could be enhanced. Proceed to refine these elements in your work.

      Step 4: Submit

      To submit your work, click on the “Reply” button under this post and paste your work in the “Message” box. Make sure to reference others’ intellectual property when necessary. All references should follow 7th Edition APA formatting. For further instructions, see the resource on the Himmelfarb Health Sciences Library: APA citation resource (N.B. references are excluded from word counts).

      OPTIONAL Step 5: Interact (10 minutes)

      If you would like to, you can reply to your peers' posts in a respectful and professional manner. Ensure that your post engages your peers' ideas by including a reflection on their comments, sharing ideas of other potential difficulties and parties involved, or asking thought-provoking questions. If a peer comments on your posting, please reply. To post a reply, click “Reply” on a particular discussion, write your feedback and then click on “Post to forum.”