What is a public health intervention?
Organized actions intended to prevent illness, protect health, or improve health across populations.
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What is a public health intervention?
Organized actions intended to prevent illness, protect health, or improve health across populations.
What should a team define first when selecting an intervention?
Identify who is affected, where the problem occurs, how often it occurs, and its consequences.
Why examine health data across groups and places?
An overall average can conceal unequal burdens across groups or places, so data should be examined across relevant populations.
How should evidence guide intervention selection?
Use evidence to assess whether an approach works, but also judge its fit with local needs, resources, values, and constraints.
What should be compared when assessing policy options?
Compare expected health impact, feasibility, and economic or budgetary effects.
What does a logic model show?
A logic model links resources and activities to expected outputs and outcomes, making the pathway for change explicit.
When is community engagement most useful?
Involve community members early and throughout implementation and evaluation so they can shape priorities, identify barriers, and define success.
At what levels can public health interventions act?
Interventions can act at individual, relationship, organizational, neighborhood, policy, or physical-environment levels; combining levels may be more appropriate than using one activity.
What does intervention implementation require?
Assign responsibilities, secure resources, prepare staff and partners, communicate clearly, and establish operational procedures.
How should an intervention be adapted to local circumstances?
Adapt delivery to local circumstances while preserving the intervention’s essential purpose; document what changed, why, and for whom.
What is formative evaluation?
Formative evaluation tests or refines an intervention before or during early delivery.
What does process evaluation examine?
Process evaluation examines what was delivered, how well it was delivered, and who was reached.