Public Health Programs Flashcards

Question 1

What is the main focus of public health compared with clinical medicine?

Accepted Answer

Public health focuses on the health of whole populations, while clinical medicine focuses on individual patients. Public health works through organized community efforts such as prevention, health promotion, and monitoring of conditions that affect groups. It also addresses social, environmental, and economic factors that shape health across communities.

Question 2

What are the three core functions commonly taught in public health practice?

Accepted Answer

The three core functions are assessment, policy development, and assurance. Assessment means collecting and analyzing data to identify community health problems. Policy development means using evidence to guide decisions and plans. Assurance means making sure needed services are available and that the workforce is competent to deliver them.

Question 3

What does the term social determinants of health mean?

Accepted Answer

Social determinants of health are the conditions in which people are born, grow, live, work, and age that influence their health. Examples include income, education, housing, neighborhood safety, and access to healthy food. These conditions are shaped by broader forces such as policies and economic systems, so programs target them alongside individual behavior.

Question 4

How do primary, secondary, and tertiary prevention differ in public health?

Accepted Answer

Primary prevention stops a health problem before it starts, such as through vaccination or safety rules. Secondary prevention detects problems early so they can be managed sooner, such as through screening programs. Tertiary prevention reduces the impact of an existing condition and limits complications or disability.

Question 5

What is the difference between incidence and prevalence?

Accepted Answer

Incidence counts new cases of a condition that develop during a specific period among people at risk. Prevalence counts all existing cases at a single point in time or over a period, including both new and long-standing cases. Incidence shows how quickly a condition is occurring, while prevalence shows how widespread it is.

Question 6

What is a rate and why do public health workers use rates instead of raw counts?

Accepted Answer

A rate expresses how many events occur within a defined population over a defined time, often per 100,000 people. Rates are preferred over raw counts because populations differ in size, so a larger city may report more cases without facing greater risk. Rates allow fair comparisons across communities and over time.

Question 7

What does the social ecological model suggest about influences on health?

Accepted Answer

The social ecological model proposes that health is shaped by nested levels of influence. These include individual factors such as knowledge and skills, interpersonal factors such as family and friends, community settings, organizational and policy environments, and broader societal conditions. Because influences work at many levels, strong programs act on more than one level.

Question 8

What is the difference between a program and a policy in public health?

Accepted Answer

A public health program is a planned set of organized activities with defined goals, staff, and resources, aimed at a specific health problem or population. A policy is a formal rule, law, or guideline that shapes behavior or decisions across a system. Programs deliver services, while policies provide the framework that sustains them.

Question 9

What is epidemiology and what does it study in populations?

Accepted Answer

Epidemiology is the study of how health conditions are distributed across populations and what factors influence that distribution. Epidemiologists collect and analyze data to describe patterns by person, place, and time. They use these findings to identify causes of health problems and to guide prevention efforts.

Question 10

Why do epidemiologists describe health data by person, place, and time?

Accepted Answer

Describing data by person, place, and time helps reveal who is affected, where cases cluster, and when changes occur. Person characteristics include age, sex, occupation, and social group. Place describes geographic area or setting, such as a neighborhood or workplace. Time shows trends across days, seasons, or years, helping analysts detect unusual changes.

Question 11

What is the difference between a cohort study and a case-control study?

Accepted Answer

A cohort study follows a group over time to see who develops an outcome, comparing those with and without an exposure. A case-control study starts with people who already have an outcome and compares them with people who do not, looking back at prior exposures. Case-control designs tend to be quicker for rare outcomes.

Question 12

What is a confounding variable in epidemiologic research?

Accepted Answer

A confounding variable is a factor linked to both the exposure and the outcome, making an association appear stronger, weaker, or different than it truly is. Age may confound a comparison if older people are more likely to have both the exposure and the outcome. Researchers reduce confounding through design or analysis.

Question 13

What is the difference between sensitivity and specificity?

Accepted Answer

Sensitivity is the proportion of people who truly have a condition that a screening test correctly identifies as positive. Specificity is the proportion of people who truly do not have a condition that the test correctly identifies as negative. High sensitivity reduces missed cases, while high specificity reduces false alarms.

Question 14

What does relative risk compare in an epidemiologic study?

Accepted Answer

Relative risk compares the probability of an outcome in an exposed group with the probability in an unexposed group. A relative risk greater than one suggests the exposure is associated with higher risk, while a value below one suggests lower risk. A value of one indicates no difference between the groups.

Question 15

What is a natural experiment in public health research?

Accepted Answer

A natural experiment occurs when a change in policy, environment, or circumstance affects some groups but not others, without researchers assigning the change. Investigators compare outcomes before and after the change or between affected and unaffected groups. Because assignment is not controlled, these studies are useful but require careful attention to other differences between groups.

Question 16

What is the purpose of surveillance in public health?

Accepted Answer

Public health surveillance is the ongoing, systematic collection, analysis, and sharing of health data so that action can be taken. Its purpose is to detect changes in health conditions, identify emerging problems, and track whether programs are working. Surveillance findings guide response decisions and help allocate resources where they are most needed.

Question 17

What is the definition of health promotion in public health?

Accepted Answer

Health promotion is the process of enabling people to increase control over and improve their health. It goes beyond disease prevention by building skills, supportive environments, and healthy public policy. Health promotion recognizes that individuals need both knowledge and conditions that make healthy choices easier.

Question 18

What is social marketing and how is it used in health promotion?

Accepted Answer

Social marketing applies commercial marketing principles to encourage behaviors that benefit public health. Programs study their audience, define a clear desired behavior, address barriers and benefits as the audience sees them, and use messages, channels, and incentives that reach people where they are.

Question 19

What does the health belief model explain about behavior?

Accepted Answer

The health belief model explains health-related actions through perceptions. People are more likely to take a recommended step when they believe they are susceptible to a problem, that it would be serious, that the action would be beneficial, and that barriers are manageable. A cue to action, such as a reminder, can prompt the step.

Question 20

How do universal, selective, and indicated prevention strategies differ?

Accepted Answer

Universal prevention reaches an entire population regardless of individual risk, such as a community-wide education campaign. Selective prevention targets subgroups with elevated risk because of shared characteristics, such as a program for youth in high-risk neighborhoods. Indicated prevention serves individuals who show early signs of a problem before it fully develops.

Question 21

What is a logic model and what does it show?

Accepted Answer

A logic model is a visual or written map that links a program's resources, activities, outputs, and outcomes to show how it is expected to work. It helps planners and evaluators agree on what the program will do and what change it hopes to produce. Logic models also make assumptions visible.

Question 22

What is a health communication campaign designed to accomplish?

Accepted Answer

A health communication campaign is an organized set of messages delivered through multiple channels over a set period to inform, persuade, or change audience behavior. Effective campaigns define a specific audience and goal, use messages tested with that audience, and repeat key points across media. They often combine mass media with community events and materials.

Question 23

Why are immunization programs classified as primary prevention?

Accepted Answer

Immunization programs are classified as primary prevention because they aim to stop a disease from occurring in the first place. Vaccines build protection before exposure, and when enough people in a community are immunized, the disease has fewer chances to spread. This indirect protection for those who cannot be vaccinated is called herd immunity.

Question 24

What does a community health worker typically do in a prevention program?

Accepted Answer

A community health worker is a trusted member of the community who links residents with services, shares health information, and supports behavior change. Workers often share language, culture, or neighborhood with the people they serve, which helps build trust. Their work includes outreach, education, referral, and follow-up, and they relay community needs to planners.

Question 25

What are the basic stages of planning a public health program?

Accepted Answer

Program planning usually moves through assessing needs, setting priorities, defining goals and objectives, selecting strategies, implementing activities, and evaluating results. Each stage depends on the one before it, so gaps in assessment can weaken later decisions. Many planners repeat the cycle, using evaluation findings to refine the next round.

Question 26

What is the purpose of a community health needs assessment?

Accepted Answer

A community health needs assessment is a systematic process for identifying a community's health problems, their causes, and the resources available to address them. It draws on existing data such as vital statistics and surveys, along with input from community members and partners. Results help leaders set priorities and justify where programs should focus.

Question 27

What is the difference between process evaluation and outcome evaluation?

Accepted Answer

Process evaluation examines how a program is carried out, including whether activities were delivered as planned, reached the intended audience, and used resources as expected. Outcome evaluation examines whether the program produced the intended changes in knowledge, behavior, or health status. Both are needed, since good outcomes cannot be interpreted without knowing what was delivered.

Question 28

What does SMART stand for when writing program objectives?

Accepted Answer

SMART is a mnemonic for objectives that are specific, measurable, achievable, relevant, and time-bound. A specific objective names the population and change, a measurable one includes an indicator and target, an achievable one is realistic given resources, a relevant one fits the identified need, and a time-bound one sets a deadline.

Question 29

How does an output indicator differ from an outcome indicator?

Accepted Answer

An output indicator counts the direct products of program activities, such as the number of people trained or sessions held. An outcome indicator measures the change that follows, such as a shift in knowledge, behavior, or a health measure among participants. Output indicators show what the program did, while outcome indicators show what changed. Both types help evaluators judge progress.

Question 30

Why do evaluators collect baseline data before a program begins?

Accepted Answer

Baseline data are measurements taken before a program starts, describing the starting condition of the target population. They allow evaluators to compare later results against where participants began, so changes can be attributed more confidently to the program. Without baseline data, it is difficult to know whether observed improvements reflect the program or existing trends.

Question 31

Why do planners pilot a program before scaling it up?

Accepted Answer

Planners pilot a program on a small scale to test whether activities are feasible, acceptable, and effective before committing larger resources. A pilot reveals practical problems such as unclear procedures, low participation, or unexpected costs, which can be fixed early. Lessons from the pilot guide adjustments, and results help decide whether expansion is justified.

Question 32

How do effectiveness and efficiency differ when judging a public health program?

Accepted Answer

Effectiveness asks whether a program achieved its intended results. Efficiency asks whether those results were achieved with a reasonable use of time, money, and staff. A program can be effective but inefficient if it reaches its goals at high cost, so evaluators often examine both.

Question 33

What is a health information system in public health practice?

Accepted Answer

A health information system is an organized arrangement of people, processes, and technology that collects, stores, analyzes, and shares health data. In public health, these systems support surveillance, program reporting, and service planning. Their value depends on accurate data entry, clear definitions, and secure handling of personal information.

Question 34

What do vital statistics records include in public health?

Accepted Answer

Vital statistics records document key life events such as births, deaths, marriages, divorces, and fetal deaths. They are typically collected through civil registration and then compiled into national and local data. Public health agencies use these records to measure population size, mortality patterns, birth outcomes, and trends that guide planning.

Question 35

What are the core dimensions of data quality in public health records?

Accepted Answer

Data quality describes how well records are fit for their intended use. Common dimensions include accuracy, completeness, timeliness, consistency, and validity. Accurate data reflect what actually happened, complete data contain all required fields, and timely data arrive soon enough to inform decisions. Consistency means definitions and coding are uniform across sites.

Question 36

Why do public health agencies use standard case definitions?

Accepted Answer

Standard case definitions are agreed-upon criteria that determine whether a person counts as a case for surveillance or reporting. They usually include clinical, laboratory, or epidemiologic features along with time and place. Using the same definition across jurisdictions makes counts comparable and prevents confusion about what is being reported.

Question 37

Why must public health records protect personal privacy and confidentiality?

Accepted Answer

Public health records contain sensitive personal information, so agencies must limit access to people with a legitimate need. Confidentiality means information is shared only as allowed by law or with consent, and identifiers are removed when data are published. Strong privacy protections also encourage people to share information honestly with public health staff.

Question 38

What is a quality improvement cycle and how is it used in public health programs?

Accepted Answer

A quality improvement cycle is a repeating process for making changes, testing them on a small scale, and learning from the results before expanding. A common model is Plan, Do, Study, Act, which asks what change to try, tries it, examines the data, and decides whether to adopt, adapt, or abandon it. Teams use this approach to make steady, evidence-based improvements in services.

Question 39

What is the difference between a performance measure and a health outcome measure?

Accepted Answer

A performance measure tracks how well a program or system carries out its work, such as the share of eligible clients who receive a service on time. A health outcome measure tracks changes in population health itself, such as rates of disease or injury. Outcome measures are shaped by many factors beyond any single program.

Question 40

What is public health accreditation and what does it aim to do?

Accepted Answer

Public health accreditation is a formal recognition process in which an agency is assessed against established standards for performance and quality. The process usually involves documenting capabilities, undergoing an external review, and committing to ongoing improvement. Accreditation aims to strengthen consistency across agencies and to give communities confidence in the services they receive.

Public Health Programs Flashcards

1Foundations of Public Health

2Core Epidemiology Concepts

3Health Promotion and Prevention

4Program Planning and Evaluation

5Health Information and Quality

Learning Resources