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Scientific Inquiry in Social Work: 8.3 Quantitative research questions

Scientific Inquiry in Social Work
8.3 Quantitative research questions
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table of contents
  1. Cover
  2. Title Page
  3. Copyright
  4. Table Of Contents
  5. Student and Instructor Resources
  6. Copyright Information
  7. Acknowledgements and Contributors
  8. Version Information
  9. 1. Introduction to research
    1. 1.0 Chapter introduction
    2. 1.1 How do social workers know what to do?
    3. 1.2 Science and social work
    4. 1.3 Why should we care?
    5. 1.4 Understanding research
  10. 2. Beginning a research project
    1. 2.0 Chapter introduction
    2. 2.1 Getting started
    3. 2.2 Sources of information
    4. 2.3 Finding literature
  11. 3. Reading and evaluating literature
    1. 3.0 Chapter introduction
    2. 3.1 Reading an empirical journal article
    3. 3.2 Evaluating sources
    4. 3.3 Refining your question
  12. 4. Conducting a literature review
    1. 4.0 Chapter introduction
    2. 4.1 What is a literature review?
    3. 4.2 Synthesizing literature
    4. 4.3 Writing the literature review
  13. 5. Ethics in social work research
    1. 5.0 Chapter introduction
    2. 5.1 Research on humans
    3. 5.2 Specific ethical issues to consider
    4. 5.3 Ethics at micro, meso, and macro levels
    5. 5.4 The practice of science versus the uses of science
  14. 6. Linking methods with theory
    1. 6.0 Chapter introduction
    2. 6.1 Micro, meso, and macro approaches
    3. 6.2 Paradigms, theories, and how they shape a researcher’s approach
    4. 6.3 Inductive and deductive reasoning
  15. 7. Design and causality
    1. 7.0 Chapter introduction
    2. 7.1 Types of research
    3. 7.2 Causal relationships
    4. 7.3 Unit of analysis and unit of observation
    5. 7.4 Mixed Methods
  16. 8. Creating and refining a research question
    1. 8.0 Chapter introduction
    2. 8.1 Empirical versus ethical questions
    3. 8.2 Writing a good research question
    4. 8.3 Quantitative research questions
    5. 8.4 Qualitative research questions
    6. 8.5 Feasibility and importance
    7. 8.6 Matching question and design
  17. 9. Defining and measuring concepts
    1. 9.0 Chapter introduction
    2. 9.1 Measurement
    3. 9.2 Conceptualization
    4. 9.3 Operationalization
    5. 9.4 Measurement quality
    6. 9.5 Complexities in quantitative measurement
  18. 10. Sampling
    1. 10.0 Chapter introduction
    2. 10.1 Basic concepts of sampling
    3. 10.2 Sampling in qualitative research
    4. 10.3 Sampling in quantitative research
    5. 10.4 A word of caution: Questions to ask about samples
  19. 11. Survey research
    1. 11.0 Chapter introduction
    2. 11.1 Survey research: What is it and when should it be used?
    3. 11.2 Strengths and weaknesses of survey research
    4. 11.3 Types of surveys
    5. 11.4 Designing effective questions and questionnaires
  20. 12. Experimental design
    1. 12.0 Chapter introduction
    2. 12.1 Experimental design: What is it and when should it be used?
    3. 12.2 Pre-experimental and quasi-experimental design
    4. 12.3 The logic of experimental design
    5. 12.4 Analyzing quantitative data
  21. 13. Interviews and focus groups
    1. 13.0 Chapter introduction
    2. 13.1 Interview research: What is it and when should it be used?
    3. 13.2 Qualitative interview techniques
    4. 13.3 Issues to consider for all interview types
    5. 13.4 Focus groups
    6. 13.5 Analyzing qualitative data
  22. 14. Unobtrusive research
    1. 14.0 Chapter introduction
    2. 14.1 Unobtrusive research: What is it and when should it be used?
    3. 14.2 Strengths and weaknesses of unobtrusive research
    4. 14.3 Unobtrusive data collected by you
    5. 14.4 Secondary data analysis
    6. 14.5 Reliability in unobtrusive research
  23. 15. Real-world research
    1. 15.0 Chapter introduction
    2. 15.1 Evaluation research
    3. 15.2 Single-subjects design
    4. 15.3 Action research
  24. 16. Reporting research
    1. 16.0 Chapter introduction
    2. 16.1 What to share and why we share
    3. 16.2 Disseminating your findings
    4. 16.3 The uniqueness of the social work perspective on science
  25. Glossary
  26. Practice behavior index
  27. Attributions index

8.3 Quantitative research questions

Learning Objectives

  • Describe how research questions for exploratory, descriptive, and explanatory quantitative questions differ and how to phrase them
  • Identify the differences between and provide examples of strong and weak explanatory research questions

Quantitative descriptive questions

The type of research you are conducting will impact the research question that you ask. Probably the easiest questions to think of are quantitative descriptive questions. For example, “What is the average student debt load of MSW students?” is a descriptive question—and an important one. We aren’t trying to build a causal relationship here. We’re simply trying to describe how much debt MSW students carry. Quantitative descriptive questions like this one are helpful in social work practice as part of community scans, in which human service agencies survey the various needs of the community they serve. If the scan reveals that the community requires more services related to housing, child care, or day treatment for people with disabilities, a nonprofit office can use the community scan to create new programs that meet a defined community need.

an illuminated street sign that reads "ask"

Quantitative descriptive questions will often ask for percentage, count the number of instances of a phenomenon, or determine an average. Descriptive questions may only include one variable, such as ours about debt load, or they may include multiple variables. Because these are descriptive questions, we cannot investigate causal relationships between variables. To do that, we need to use a quantitative explanatory question.

Quantitative explanatory questions

Most studies you read in the academic literature will be quantitative and explanatory. Why is that? If you recall from Chapter 7, explanatory research tries to build nomothetic causal relationships. They are generalizable across space and time, so they are applicable to a wide audience. The editorial board of a journal wants to make sure their content will be useful to as many people as possible, so it’s not surprising that quantitative research dominates the academic literature.

Structurally, quantitative explanatory questions must contain an independent variable and dependent variable. Questions should ask about the relationship between these variables. My standard format for an explanatory quantitative research question is: “What is the relationship between [independent variable] and [dependent variable] for [target population]?” You should play with the wording for your research question, revising it as you see fit. The goal is to make the research question reflect what you really want to know in your study.

Let’s take a look at a few more examples of possible research questions and consider the relative strengths and weaknesses of each. Table 8.1 does just that. While reading the table, keep in mind that I have only noted what I view to be the most relevant strengths and weaknesses of each question. Certainly each question may have additional strengths and weaknesses not noted in the table.

Table 8.1 Sample research questions: Strengths and weaknesses
Sample questionQuestion’s strengthsQuestion’s weaknessesProposed alternative
What are the internal and external effects/problems associated with children witnessing domestic violence?Written as a questionNot clearly focusedHow does witnessing domestic violence impact a child’s romantic relationships in adulthood?
Considers relationships among multiple conceptsNot specific and clear about the concepts it addresses
Contains a population
What causes foster children who are transitioning to adulthood to become homeless, jobless, pregnant, unhealthy, etc.?Considers relationships among multiple conceptsConcepts are not specific and clearWhat is the relationship between sexual orientation or gender identity and homelessness for late adolescents in foster care?
Contains a population
Not written as a yes/no question
How does income inequality predict ambivalence in the Stereo Content Model using major U.S. cities as target populations?Written as a questionUnclear wordingHow does income inequality affect ambivalence in high-density urban areas?
Considers relationships among multiple conceptsPopulation is unclear
Why are mental health rates higher in white foster children then African Americans and other races?Written as a questionConcepts are not clearHow does race impact rates of mental health diagnosis for children in foster care?
Not written as a yes/no questionDoes not contain a target population

Making it more specific

A good research question should also be specific and clear about the concepts it addresses. A student investigating gender and household tasks knows what they mean by “household tasks.” You likely also have an impression of what “household tasks” means. But are your definition and the student’s definition the same? A participant in their study may think that managing finances and performing home maintenance are household tasks, but the researcher may be interested in other tasks like childcare or cleaning. The only way to ensure your study stays focused and clear is to be specific about what you mean by a concept. The student in our example could pick a specific household task that was interesting to them or that the literature indicated was important—for example, childcare. Or, the student could have a broader view of household tasks, one that encompasses childcare, food preparation, financial management, home repair, and care for relatives. Any option is probably okay, as long as the researcher is clear on what they mean by “household tasks.”

Table 8.2 contains some “watch words” that indicate you may need to be more specific about the concepts in your research question.

Table 8.2 “Watch words”
Watch wordsHow to get more specific
Factors, Causes, Effects, OutcomesWhat causes or effects are you interested in? What causes and effects are important, based on the literature in your topic area? Try to choose one or a handful that you consider to be the most important.
Effective, Effectiveness, Useful, EfficientEffective at doing what? Effectiveness is meaningless on its own. What outcome should the program or intervention have? Reduced symptoms of a mental health issue? Better socialization?
Etc., and so forthGet more specific. You need to know enough about your topic to clearly address the concepts within it. Don’t assume that your reader understands what you mean by “and so forth.”

It can be challenging in social work research to be this specific, particularly when you are just starting out your investigation of the topic. If you’ve only read one or two articles on the topic, it can be hard to know what you are interested in studying. Broad questions like “What are the causes of chronic homelessness, and what can be done to prevent it?” are common at the beginning stages of a research project. However, social work research demands that you examine the literature on the topic and refine your question over time to be more specific and clear before you begin your study. Perhaps you want to study the effect of a specific anti-homelessness program that you found in the literature. Maybe there is a particular model to fighting homelessness, like Housing First or transitional housing that you want to investigate further. You may want to focus on a potential cause of homelessness such as LGBTQ discrimination that you find interesting or relevant to your practice. As you can see, the possibilities for making your question more specific are almost infinite.

Quantitative exploratory questions

In exploratory research, the researcher doesn’t quite know the lay of the land yet. If someone is proposing to conduct an exploratory quantitative project, the watch words highlighted in Table 8.2 are not problematic at all. In fact, questions such as “What factors influence the removal of children in child welfare cases?” are good because they will explore a variety of factors or causes. In this question, the independent variable is less clearly written, but the dependent variable, family preservation outcomes, is quite clearly written. The inverse can also be true. If we were to ask, “What outcomes are associated with family preservation services in child welfare?”, we would have a clear independent variable, family preservation services, but an unclear dependent variable, outcomes. Because we are only conducting exploratory research on a topic, we may not have an idea of what concepts may comprise our “outcomes” or “factors.” Only after interacting with our participants will we be able to understand which concepts are important.

Key Takeaways

  • Quantitative descriptive questions are helpful for community scans but cannot investigate causal relationships between variables.
  • Quantitative explanatory questions must include an independent and dependent variable.

Image attributions

Ask by terimakasih0 CC-0

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8.4 Qualitative research questions
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Copyright © 2018 by Matthew DeCarlo. Scientific Inquiry in Social Work by Matthew DeCarlo is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.
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