DNP 820 Topic 6 DQ 1: clinical vs statistical significance
The word only makes this a question about conditions, not about preference — and the honest answer includes the safeguards that stop clinical significance becoming a way of declaring any result a success.
Editorial process
Last reviewed · August 15, 2026
Two significances, and only one is about patients
Get the two concepts apart cleanly first. Statistical significance answers whether an observed difference is likely to have arisen by chance given the sample; it is exquisitely sensitive to sample size, so a trivial difference reaches significance in a very large study and a substantial one misses it in a small one. Clinical significance answers whether the difference is large enough to matter to a patient or to practice, and it is not derived from the data at all — it comes from judgement, from a minimal clinically important difference established elsewhere, or from patient-reported thresholds. A DPI project typically runs on one unit for one quarter with whatever sample walks through the door, so it is underpowered by construction, and treating a non-significant result as a failure would condemn almost every such project. Condemning almost every project of this kind as a failure is not a defensible reading of what such projects are for.
So state the conditions under which clinical significance can stand alone, because that is what the word only is asking. It is appropriate when the project was never powered for statistical inference and says so in advance; when the outcome has an established minimal clinically important difference you can point to rather than assert; when the change is in a direction that matters and is consistent across the period rather than a single point; and when the effect is large enough that a reader would act on it. The safeguards matter as much as the permission. Define the threshold before you collect data, not after seeing the result. Report the actual numbers and confidence intervals rather than only the conclusion. Use run-chart or statistical process control logic so a trend is distinguished from noise. And acknowledge honestly that a project without statistical evidence is hypothesis-generating for wider spread rather than proof of it.
Likely learning objectives
Inferred from the brief — check these against your own rubric.
- 01Distinguish statistical from clinical significance by what each answers.
- 02Explain why quality improvement projects are underpowered by construction.
- 03State the conditions under which clinical significance can stand alone.
- 04Identify safeguards against post hoc redefinition of success.
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Review every instruction before using the planning guidance that follows.
Course-wide instructions that accompany this question
Important information for writing discussion questions and participation Hi Class, Please read through the following information on writing a Discussion question response and participation posts. Contact me if you have any questions. Important information on Writing a Discussion Question Your response needs to be a minimum of 150 words (not including your list of references) There needs to be at least TWO references with ONE being a peer reviewed professional journal article. Include in-text citations in your response Do not include quotes—instead summarize and paraphrase the information Follow APA-7th edition Points will be deducted if the above is not followed Participation –replies to your classmates or instructor A minimum of 6 responses per week, on at least 3 days of the week. Each response needs at least ONE reference with citations—best if it is a peer reviewed journal article Each response needs to be at least 75 words in length (does not include your list of references) Responses need to be substantive by bringing information to the discussion or further enhance the discussion. Responses of “I agree” or “great post” does not count for the word count. Follow APA 7th edition Points will be deducted if the above is not followed Remember to use and follow APA-7th edition for all weekly assignments, discussion questions, and participation points. Here are some helpful links Student paper example Citing Sources The Writing Center is a great resource Welcome to class DNP 820 Topic 6 DQ 1 When is it appropriate to deem a project’s outcomes successful only using clinical significance as the only measure of success Hello class and welcome to the class and I will be your instructor for this course. This is a -week course and requires a lot of time commitment, organization, and a high level of dedication. Please use the class syllabus to guide you through all the assignments required for the course. I have also attached the classroom policies to this announcement to know your expectations for this course. Please review this document carefully and ask me any questions if you do. You could email me at any time or send me a message via the “message” icon in halo if you need to contact me. I check my email regularly, so you should get a response within 24 hours. If you have not heard from me within 24 hours and need to contact me urgently, please send a follow up text to. I strongly encourage that you do not wait until the very last minute to complete your assignments. Your assignments in weeks 4 and 5 require early planning as you would need to present a teaching plan and interview a community health provider. 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I usually post a discussion question each week. You could also respond to these as it would count towards your required SIX discussion posts for the week. I understand this is a lot of information to cover in 5 weeks, however, the Bible says in Philippians 4:13 that we can do all things through Christ that strengthens us. Even in times like this, we are encouraged by God’s word that we have that ability in us to succeed with His strength. I pray that each and every one of you receives strength for this course and life generally as we navigate through this pandemic that is shaking our world today. Relax and enjoy the course! Name: Discussion Rubric Grid View List View Excellent 90–100 Good 80–89 Fair 70–79 Poor 0–69 Main Posting: Response to the Discussion question is reflective with critical analysis and synthesis representative of knowledge gained from the course readings for the module and current credible sources. 40 (40%) – 44 (44%) Thoroughly responds to the Discussion question(s). Is reflective with critical analysis and synthesis representative of knowledge gained from the course readings for the module and current credible sources. No less than 75% of post has exceptional depth and breadth. Supported by at least three current credible sources. 35 (35%) – 39 (39%) Responds to most of the Discussion question(s). Is somewhat reflective with critical analysis and synthesis representative of knowledge gained from the course readings for the module. 50% of the post has exceptional depth and breadth. Supported by at least three credible references. 31 (31%) – 34 (34%) Responds to some of the Discussion question(s). One to two criteria are not addressed or are superficially addressed. Is somewhat lacking reflection and critical analysis and synthesis. Somewhat represents knowledge gained from the course readings for the module. Cited with fewer than two credible references. 0 (0%) – 30 (30%) Does not respond to the Discussion question(s). Lacks depth or superficially addresses criteria. Lacks reflection and critical analysis and synthesis. Does not represent knowledge gained from the course readings for the module. Contains only one or no credible references. Main Posting: Writing 6 (6%) – 6 (6%) Written clearly and concisely. Contains no grammatical or spelling errors. Adheres to current APA manual writing rules and style. 5 (5%) – 5 (5%) Written concisely. May contain one to two grammatical or spelling errors. Adheres to current APA manual writing rules and style. 4 (4%) – 4 (4%) Written somewhat concisely. May contain more than two spelling or grammatical errors. Contains some APA formatting errors. 0 (0%) – 3 (3%) Not written clearly or concisely. Contains more than two spelling or grammatical errors. Does not adhere to current APA manual writing rules and style. Main Posting: Timely and full participation 9 (9%) – 10 (10%) Meets requirements for timely, full, and active participation. Posts main Discussion by due date. 8 (8%) – 8 (8%) Meets requirements for full participation. Posts main Discussion by due date. 7 (7%) – 7 (7%) Posts main Discussion by due date. 0 (0%) – 6 (6%) Does not meet requirements for full participation. Does not post main Discussion by due date. First Response: Post to colleague’s main post that is reflective and justified with credible sources. 9 (9%) – 9 (9%) Response exhibits critical thinking and application to practice settings. Responds to questions posed by faculty. The use of scholarly sources to support ideas demonstrates synthesis and understanding of learning objectives. 8 (8%) – 8 (8%) Response has some depth and may exhibit critical thinking or application to practice setting. 7 (7%) – 7 (7%) Response is on topic and may have some depth. 0 (0%) – 6 (6%) Response may not be on topic and lacks depth. First Response: Writing 6 (6%) – 6 (6%) Communication is professional and respectful to colleagues. Response to faculty questions are fully answered, if posed. Provides clear, concise opinions and ideas that are supported by two or more credible sources. Response is effectively written in standard, edited English. 5 (5%) – 5 (5%) Communication is mostly professional and respectful to colleagues. Response to faculty questions are mostly answered, if posed. Provides opinions and ideas that are supported by few credible sources. Response is written in standard, edited English. 4 (4%) – 4 (4%) Response posed in the Discussion may lack effective professional communication. Response to faculty questions are somewhat answered, if posed. Few or no credible sources are cited. 0 (0%) – 3 (3%) Responses posted in the Discussion lack effective communication. Response to faculty questions are missing. No credible sources are cited. First Response: Timely and full participation 5 (5%) – 5 (5%) Meets requirements for timely, full, and active participation. Posts by due date. 4 (4%) – 4 (4%) Meets requirements for full participation. Posts by due date. 3 (3%) – 3 (3%) Posts by due date. 0 (0%) – 2 (2%) Does not meet requirements for full participation. Does not post by due date. Second Response: Post to colleague’s main post that is reflective and justified with credible sources. 9 (9%) – 9 (9%) Response exhibits critical thinking and application to practice settings. Responds to questions posed by faculty. The use of scholarly sources to support ideas demonstrates synthesis and understanding of learning objectives. 8 (8%) – 8 (8%) Response has some depth and may exhibit critical thinking or application to practice setting. 7 (7%) – 7 (7%) Response is on topic and may have some depth. 0 (0%) – 6 (6%) Response may not be on topic and lacks depth. Second Response: Writing 6 (6%) – 6 (6%) Communication is professional and respectful to colleagues. Response to faculty questions are fully answered, if posed. Provides clear, concise opinions and ideas that are supported by two or more credible sources. Response is effectively written in standard, edited English. 5 (5%) – 5 (5%) Communication is mostly professional and respectful to colleagues. Response to faculty questions are mostly answered, if posed. Provides opinions and ideas that are supported by few credible sources. Response is written in standard, edited English. 4 (4%) – 4 (4%) Response posed in the Discussion may lack effective professional communication. Response to faculty questions are somewhat answered, if posed. Few or no credible sources are cited. 0 (0%) – 3 (3%) Responses posted in the Discussion lack effective communication. Response to faculty questions are missing. No credible sources are cited. Second Response: Timely and full participation 5 (5%) – 5 (5%) Meets requirements for timely, full, and active participation. Posts by due date. 4 (4%) – 4 (4%) Meets requirements for full participation. Posts by due date. 3 (3%) – 3 (3%) Posts by due date. 0 (0%) – 2 (2%) Does not meet requirements for full participation. Does not post by due date. Total Points: 100 Name: Discussion Rubric
Turn the brief into deliverables
- 01A clear distinction between the two forms of significance.
- 02Why EBP projects typically lack statistical power.
- 03The conditions permitting clinical significance as the sole measure.
- 04Safeguards, including pre-specified thresholds and reported numbers.
The distinction, the conditions, then the safeguards
The two significances
Define each by the question it answers and its dependence on sample size.
Why projects lack power
Explain the structural reasons a DPI project is underpowered.
The conditions
State when clinical significance alone is a legitimate measure of success.
The safeguards
Give the protections against post hoc success, including pre-specified thresholds.
How the discipline defines a meaningful difference
Recommended databases
- PubMed Central
- AHRQ
- CINAHL
- Quality improvement literature
Search sequence
- 1.Find whether an established minimal clinically important difference exists for your outcome.
- 2.Read one paper on the limits of the p value before writing the distinction.
- 3.Look at how run charts distinguish signal from noise in quality improvement.
- 4.Check what your programme requires you to report about significance.
Reference shortlist
These are authoritative starting points, not a ready-made bibliography. A qualified reviewer must confirm that each source fits the assignment and supports the claim beside which it is cited.
Nothing here is cleared for citation until you have read it.
- 01
Alternatives to the P value: connotations of significance
Korean Journal of Anesthesiology · 2024
Alternatives to the p value, which is the technical basis for arguing that significance is not the only measure.
- 02
Ethical oversight in quality improvement and quality improvement research: new approaches to promote a learning health care system
BMC Medical Ethics · 2015
Ethical oversight in quality improvement, which frames what a QI project may legitimately claim.
- 03
CONSORT: Consolidated Standards of Reporting Trials
EQUATOR Network · 2024
What a trial must report, and by contrast what a QI project should still report about its numbers.
- 04
Evidence-Based Medicine
StatPearls, NCBI Bookshelf · 2024
The evidence framework a single underpowered project sits inside, which bounds what its result licenses.
Review before submission
Common mistakes
- Treating clinical significance as whatever the project happened to achieve.
- Deciding the meaningful threshold after seeing the results.
- Reporting a conclusion without the numbers behind it.
- Claiming that a non-significant result proves no effect.
- Presenting an underpowered project's finding as evidence for wider spread.
Submission checklist
- Is the distinction stated in terms of what each answers?
- Have you given conditions rather than a preference?
- Is a pre-specified threshold among your safeguards?
- Would your criteria prevent declaring any result a success?
- Have you said what such a project's finding does and does not license?
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