Validating a study

welve Preliminary Overview Questions Using the twelve preliminary questions you will learn how to evaluate a study in its validity. This process will help you build on the critical appraisal of the evidence, so that you can determine the level of evidence of a study.

You will practice validating a study through applying twelve preliminary questions that can be categorized into three themes.

  1. Are the results valid? 2. What do the results mean to my patients? 3. Will the results help me locally?

Types of Questions and Common Terms

In this section you will learn the how to address the twelve questions of critical review of the evidence along with the common terms that are used for this. Common terms such as validity, reliability, bias, context, and study design are a few of the terms you will learn as you categorize and critical appraise a study.

Types of Questions and Common Terms

There are six basic qualitative techniques you use to locate data that is quality and evidence-based. In your role as a researcher, you must become adept at implementing these practical techniques for research review.

These six steps include:

  1. Develop the clinical question. 2. Search for the best evidence. 3. Appraise or synthesize the evidence. 4. Implement the evidence in practice. 5. Evaluate whether the practice changes have improved outcomes. 6. Disseminate the results.

Four Criteria for Evaluating a Qualitative Study

In this unit there’s an opportunity to understand the distinction of criteria to evaluate the methods used for a study to be evaluated. The four criteria for evaluating a qualitative study: credibility, transferability, dependability, and confirmability .Through this qualitative approach to a study overview the determination can be made about whether the study can be transferred to another setting. These criteria allow for quick review of studies, to determine if they studies are reliable for differing practice settings.


Taylor, E., & Hignett, S. (2014). Evaluating evidence: Defining levels and quality using critical appraisal mixed method tools. Health Environments & Research and Design Journal, 3, 144–151.

After completing this unit, you should be able to:

Discuss each of the 12 preliminary overview questions that should be addressed in critically appraising qualitative studies. Describe the types of clinical questions addressed and terms commonly used by the qualitative traditions of ethnography, grounded theory, phenomenology, and hermeneutics. Interpret each of the six research techniques used in qualitative research. Utilize the four general criteria for evaluating a qualitative study (credibility, transferability, dependability, and confirmability).

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