DNP 800 Theoretical and Scientific Underpinnings sample papers, module by module

Reviewed by Maren Hollowell, MSN, RN Theoretical and Scientific Underpinnings Aspen University Free custom samples in 24–48h

DNP 800 asks doctoral nursing students to ground practice in science and theory, then build the literature review their scholarly project will stand on.

The short version

Send the exact assignment or rubric from your classroom and a custom DNP 800 sample written to it lands in 24 to 48 hours, the first one free. DNP 800 is Aspen’s Theoretical and Scientific Underpinnings course. It centers on the scientific foundations of advanced nursing practice in pathophysiology, psychosocial science and environmental science, the patterns and processes by which nursing knowledge develops, and a review of the literature on a topic of the student's choosing. Searches like "DNP 800 module 3 assignment example", "DNP800 sample paper", and "DNP 800 module samples" land on this page.

What DNP 800 is really about

DNP 800 sits at the start of the doctoral sequence for a reason. Before a student can design an improvement project, they need to show how biology, behavior and environment explain the problem they care about, and which theory makes sense of it. The course treats theory as a working tool: something that tells you what to measure and why an intervention should work.

The second thread is the literature review. By the final module you are expected to have searched systematically, appraised what you found and synthesized it into an argument that your topic matters and that something can be done. That review becomes the backbone of later project chapters, so the habits formed here carry forward.

What DNP 800’s assessments ask for

Expect papers that explain a practice problem through several sciences, analyze a nursing or borrowed theory against evaluation criteria, apply theory to a clinical question, document a search strategy, build a synthesis matrix and write an integrated review of literature.

Where students lose points in DNP 800

Students lose marks by summarizing theories without applying them, by listing studies one after another instead of synthesizing them, and by choosing a theory that does not fit the problem. Searches that cannot be reproduced and reviews that ignore contrary evidence are common weaknesses.

The DNP 800 drawers

Module 1

DNP 800 Module 1 assignment example

The scientific foundations of practice: why about a third of hospitalized adults over 70 leave less able to care for themselves, explained through the physiology of bed rest, the psychology of patients and staff, and a hospital environment in which older men who could walk spent 83% of their stay lying in bed. Full sample paper, read it free.

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Module 2

DNP 800 Module 2 assignment example

How nursing knowledge develops: grand, middle-range and situation-specific theory told as a ladder of abstraction, and the Theory of Unpleasant Symptoms taken apart (symptoms, influencing factors, performance) and tested against a hospitalized older adult whose pain, breathlessness and fatigue keep her in bed. Full sample paper, read it free.

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Module 3

DNP 800 Module 3 assignment example

A borrowed theory applied: Bandura's self-efficacy theory from psychology used to explain why capable older inpatients will not get out of bed, its four sources of efficacy turned into nursing actions, and function-focused care, the nursing philosophy built on it, tested in a trial with patients and families. Full sample paper, read it free.

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Module 4

DNP 800 Module 4 assignment example

Environmental science and health: extreme heat and older adults' medicines, how diuretics, ACE inhibitors, anticholinergics and antipsychotics impair the body's cooling, Medicare data showing heat-related admissions up to a third higher during heatwaves, the Chicago 1995 risk factors, and a summer medication review in primary care. Full sample paper, read it free.

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Module 5

DNP 800 Module 5 assignment example

A documented search strategy: the question about in-hospital mobility and exercise programs for adults 65 and older broken into concepts, subject headings and keywords for PubMed and CINAHL written out in full, limits and why, a 2007 Cochrane review as the starting point, and a screening log in the PRISMA 2020 format. Full sample paper, read it free.

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Module 6

DNP 800 Module 6 assignment example

A synthesis matrix: six studies of keeping older inpatients moving laid out by design, sample, intervention, outcomes and findings (a Cochrane review, a Spanish exercise trial of 370 adults, a veterans' walking trial, a supervised walking program, a family-centered nursing model and a 12,490-patient Ontario rollout), then read across by theme. Full sample paper, read it free.

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Module 7

DNP 800 Module 7 assignment example

Evaluating a middle-range theory before a project uses it: the Theory of Unpleasant Symptoms scored against six published criteria (significance, internal consistency, parsimony, testability, empirical adequacy, pragmatic adequacy), a Korean model test with 202 patients, where it falls short for a hospital mobility project, and the decision to use it with a named adaptation. Full sample paper, read it free.

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Module 8

DNP 800 Module 8 assignment example

The integrated review of literature: why older adults lose function in hospital, two theories that explain it, what trials of exercise, walking and nursing care models show, what they leave unanswered about who delivers the program and at what cost, and the question a nurse-delivered daily mobility project will ask. Full sample paper, read it free.

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Using a DNP 800 sample the right way

Read a finished DNP 800 paper for how it moves from a clinical observation to a theory and then to evidence. Your topic will differ, so the value is in the structure of the argument and the way sources are weighed, not in the content.

DNP 800 questions, answered

How is DNP 800 different from DNP 845?

The two codes share a course title. Aspen lists both in its current catalog for different DNP program plans, so check your own plan to see which one you are enrolled in.

How many sources does the DNP 800 literature review need?

Aspen's classroom sets the requirement. Most doctoral reviews rely on recent peer-reviewed research, systematic reviews and guidelines, with enough studies to support each theme.

Do I have to use a nursing theory?

Not always. Many DNP projects use theories from psychology, sociology or implementation science. What matters is that the theory fits the problem and guides the project.