DQ 1 :Why are public health models important in providing quality health care?
Two named models, described by their structure, and an impact claim with a mechanism behind it. A model is a thing with parts; naming one without its parts is a citation.
Editorial process
Last reviewed · August 18, 2026
What a public health model is actually for
Say what a model is for before naming any. A public health model is a structured account of how a health problem is produced and where an intervention can enter, and its practical value is that it stops a programme intervening only where it happens to be easy. Without one, an obesity programme becomes leaflets, because education is the intervention closest to hand. With the socio-ecological model in front of you, the same problem has five levels — individual, interpersonal, organisational, community and policy — and the question becomes which level you are working at and whether anyone is working at the others. That is the function: models make omissions visible. Say that plainly and the rest of the post has a criterion to judge each model against. Say what each model would stop a programme from missing, and the description stops being a summary.
Then describe two models with their actual parts and contrast what each is good for. The socio-ecological model is a levels model and is strongest for scoping and for showing where a programme is not working. The Health Belief Model is an individual-level explanatory model — perceived susceptibility, severity, benefits, barriers, cues to action and self-efficacy — and its strength is designing the message and predicting who will act. PRECEDE-PROCEED is a planning model that works backwards from the outcome through behavioural and environmental determinants, and it is the one that forces an evaluation design. The Chronic Care Model is a system model about how services are organised. Choose two that differ in level, describe their components, and make the impact claim concrete: this model changed what was measured, or which population was targeted, or where the money went. Impact is a change in a decision, not an improvement in awareness.
Likely learning objectives
- State the function of a public health model as making omissions visible.
- Describe two models by their components.
- Contrast models operating at different levels.
- Express impact as a change in a decision rather than in awareness.
Assignment instructions
Read the full question
Review every instruction before using the planning guidance that follows.
PHN 652 Topic 2 DQ 1 DQ 1 :Why are public health models important in providing quality health care? Assessment Description Why are public health models important in providing quality health care? Briefly describe two public health models and their impact on quality health care.
Turn the brief into deliverables
- 01An account of what models are for.
- 02Two named models with their components.
- 03A contrast on the level each operates at.
- 04An impact claim with a mechanism.
- 05An example of a programme decision a model changed.
The function of models, then two described and compared
What a model does for a programme
Explain models as structures that reveal where you are not intervening.
What the assessor is likely looking for
The omission argument, with an example.
Model one, with its components
Describe a levels or planning model by its parts.
What the assessor is likely looking for
Components listed and explained, not just named.
Model two, at a different level
Describe an individual or system model for contrast.
What the assessor is likely looking for
A level distinct from the first model's.
Impact on quality care
Show each model changing a programme decision.
What the assessor is likely looking for
A decision — target, measure or allocation — that changed.
Choosing between them
Say which you would use for a stated problem and why.
What the assessor is likely looking for
A choice justified by the problem's structure.
Where the named models are documented
Recommended databases
- NCBI Bookshelf
- Community Tool Box
- PubMed Central
- Office of Disease Prevention and Health Promotion
Search sequence
- 1.Read a primary description of each model rather than a comparison table.
- 2.Find a study applying one model to a real population programme.
- 3.Check Healthy People for how national programmes are structured.
- 4.Pick two models at different levels before writing.
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.
The Health Belief Model of Behavior Change
StatPearls, NCBI Bookshelf · 2024
The Health Belief Model, described component by component.
MAP-IT: A Model for Implementing Healthy People 2020
Community Tool Box, Center for Community Health and Development, University of Kansas · 2024
MAP-IT as a planning model, with its stages set out.
The Health Belief Model tested in hypertension management — a model with measured impact.
Social Determinants of Health
Office of Disease Prevention and Health Promotion · 2024
Social determinants framing, for the upper levels of a socio-ecological account.
Epidemiology Morbidity And Mortality
StatPearls, NCBI Bookshelf · 2023
Epidemiology of morbidity and mortality, for the problem structure models are built to describe.
Review before submission
Common mistakes
- Naming models without describing their parts.
- Choosing two models at the same level, which produces no contrast.
- Claiming impact as improved awareness rather than a changed decision.
- Describing public health generally instead of specific models.
Submission checklist
- Can you list the components of both models?
- Do your two models operate at different levels?
- Is each impact claim tied to a decision?
- Have you said what a model prevents a programme from missing?
- Are both models real and citable?
Use this guide to plan and review your own work. Follow your institution's rules and read Brinevia's academic-integrity policy.
Written by
Maren Caldwell
MSN, RN, CNE
Medical-surgical nursing, pharmacology and NCLEX preparation
Maren is a registered nurse with over 15 years of clinical and educational experience in medical-surgical nursing. She writes on NCLEX preparation, patient care fundamentals, pharmacology and evidence-based practice.
Reviewed by
Dr. Tessa Redmond
DNP, RN, CNE
Evidence-based practice and clinical education
Tessa is a doctorally-prepared nurse educator. She reviews Brinevia content for clinical accuracy and alignment with current evidence-based guidelines.