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Evaluating Research Questions, Hypotheses, and Quantitative Research Designs

Evaluating Research Questions, Hypotheses, and Quantitative Research Designs

Quantitative research is typically used to determine various aspects of practical situations that involve numerical values or quantifiable data. There is a need to choose an appropriate research design based on the research questions and hypotheses. The quantitative research design, on the other hand, is interactive and does not follow a set sequence throughout the study (Burkholder et al., 2016). The study is also used to formulate research questions and hypotheses, which are subject to change in order to find appropriate research questions and hypotheses. However, some ethical implications associated with the research design used for a specific study, the procedures to be followed when collecting data, and the methods of collecting data related to the research design must be considered.

According to the journal article “Rank Perception and Self-Evaluation in Eating Disorders,” the research questions and hypotheses used can be evaluated to find or determine the study’s significant implications (Cardi et al.e, 2014). The research question is a logical extension of the study’s purpose, which is to identify various effects of eating disorders, evaluate their causes, signs, and symptoms, and design multiple ways for patients to control the problem. The presented research question also depicts the best issue that can be used to solve the problem. Ranking Perception and Self-Evaluation are two of the best methods proposed in the study, and they can help patients identify and control Eating Disorders.

The identified method for data collection includes participant contributions, which is consistent with the research question. Because the problem directly affects individuals, it is critical to consider public opinion on eating disorders. As a social worker, it is critical to solving a problem by first identifying its root cause, which should be accomplished through a mutual discussion with the people who are experiencing difficulties. As a result, the data collection method defined in this study is best suited to answering the study’s research questions. In other words, the data collected comes directly from the source and is directly related to the problem stated at the start of the study, so it can provide correct answers to the research questions.

The study employed a quantitative research method, which is clearly consistent with the review’s descriptive nature. In other words, the detailed questions presented in this study sought to provide detailed responses to the study’s significant variables. According to the data collection method and measures used, it is clear that the quantitative research employed a comprehensive and detailed approach to answering research questions as well as evaluating and responding to critical variables of the investigation. A demographic questionnaire, which includes discussions about ethnicity, medication, visual impairment, and neurological condition, among other things, is a clear indicator of how the research method seeks to provide answers to the main hypotheses and research question, which is about how eating Disorders can be maintained among individuals.

In addition, the study’s inferential questions sought to compare different groups of people with different approaches to eating disorders (Laureate Education, 2015). It is important to note that in a societal setting, different people react to problems in different ways. As a result, the study seeks to compare the differences in how various groups of people respond to the issue of eating disorders and their implications. The inferential questions, on the other hand, are derived from theories that explain the causes of eating disorders and their consequences, such as obesity and other related diseases. In theory, eating disorders are the leading causes of obesity, which can also be attributed to other factors.


Burkholder, G. J., Cox, K. A., & Crawford, L. M. (2016). The scholar-practitioners guide to research design. Baltimore, MD: Laureate Publishing

Cardi, V., Matteo, R., Gilbert, P., &Treasure, J. (2014). Rank Perception and Self-Evaluation in Eating Disorders. International Journal of Eating Disorders, 47(5), 543-552.

Laureate Education (Producer). (2015). Overview of quantitative research methods [Video file]. Baltimore, MD: Author.


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With a clear purpose in place, quantitative researchers have a roadmap for crafting their research questions and hypotheses that will further focus the approach they will take to investigate their topic (i.e., their study’s research design).

Evaluating Research Questions, Hypotheses, and Quantitative Research Designs

Evaluating Research Questions, Hypotheses, and Quantitative Research Designs

The selection of a research design is guided by the study’s purpose and research questions and hypotheses, and the design then links the research questions and hypotheses to the data that will be collected. You should keep in mind, however, that the research process is interactive, not necessarily proceeding in a linear fashion from one component to the next. Rather, the writing of research questions could, for example, necessitate adjustments to the study’s purpose statement. Nevertheless, when presented together, the various components of a research study should align. As you learned last week, alignment means that a research study possesses clear and logical connections among all of its various components.

In addition to considering alignment, when researchers select a research design, they must also consider the ethical implications of their choice, including, for example, what their design selection means for participant recruitment, procedures, and privacy.

For this Discussion, you will evaluate quantitative research questions and hypotheses in assigned journal articles in your discipline and consider the alignment of theory, problem, purpose, research questions and hypotheses, and design. You will also identify the type of quantitative research design the authors used and explain how it was implemented. Quasi-experimental, casual comparative, correlational, pretest–posttest, or true experimental are examples of types of research designs used in quantitative research.

With these thoughts in mind, refer to the Journal Articles document for your assigned articles for this Discussion. If your last name starts with A through I, use Article A. If your last name starts with J through R, use Article B. If your last name starts with S through Z, use Article C.


Post a critique of the research study in which you:

  • Evaluate the research questions and hypotheses.The Research Questions and Hypotheses Checklist serves as a guide for your evaluation. Please do not respond to the checklist in a Yes/No format in writing your Discussion post.
  • Identify the type of quantitative research design used and explain how the researchers implemented the design.
  • Analyze alignment among the theory, problem, purpose, research questions and hypotheses, and design.

Be sure to support your Main Issue Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style.



  • Babbie, E. (2017). Basics of social research (7th ed.). Boston, MA: Cengage Learning.
    • Chapter 5, “Conceptualization, Operationalization, and Measurement”
  • Burkholder, G. J., Cox, K. A., Crawford, L. M., & Hitchcock, J. H.  (Eds.). (2020). Research designs and methods: An applied guide for the scholar-practitioner. Thousand Oaks, CA: Sage.
    • Chapter 4, “Quantitative Research Designs”
  • Document: Journal Articles (Word Document)Download Journal Articles (Word Document)For the Discussion, download this document, refer to the assigned journal articles for your program, and find these articles in the Walden Library.
  • Document: Research Questions and Hypotheses Checklist (PDF)Download Research Questions and Hypotheses Checklist (PDF)For this Discussion, use the prompts in this checklist to look for indications of the research questions and hypotheses criteria in your assigned quantitative research article.This checklist serves as a guide for your evaluation. Please do not respond to the checklist in a Yes/No format in writing your Discussion post.

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