NR503 Population Health & Epidemiology (Kreman) Questions
with Verified Answers (Correct Update)
Question 1: with COMPLETE Solutions
Answer: Epidemiology the science of public health
Question 2: Epidemiology
Answer: the science of public health
Question 3: Population Health
Answer: focuses on risk, data, demographics, and outcomes
Question 4: HP2020
Answer: national document with agreed upon natural objectives that guide and assist population health
across the lifespan.
Question 5: Social Determinants of Health
Answer: housing, education, access to public transportation, access to safe water, access to fresh food,
and the built environment, are all related to a population's health.
Question 6: Surveillance Systems
Answer: collection, analysis, dissemination of data
Question 7: Screening (tools)
Answer: should be tested and have available statistics that speak to their specificity, sensitivity and
positive predictive value (PPV)
Question 8: Primary Prevention
Answer: prevention measure that occur before disease process. Primary prevention refers to the process
of altering susceptibility or reducing exposure to susceptible
Question 9: individuals and includes general health promotion and specific measures designed to
prevent
Answer: disease prior to a person getting the disease
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, Question 10: Secondary Prevention
Answer: early detection and prompt treatment of a disease at the earliest possible stage are referred to as
secondary prevention. The goals of secondary prevention are to either identify and cure a disease at a
very early stage or slow its progression to prevent complications and limit disability. Ex: health fair
Question 11: Tertiary Prevention
Answer: prevention strategies are implemented during the middle or late stages of clinical disease and
refer to measures taken to alleviate disability and restore effective functioning. Attempts are made to
slow the progression or to cure the disease. ex: rehab
Question 12: Epidemiological Triad
Answer: host, agent and environment
Question 13: Descriptive Epidemiology
Answer: first step in any epidemiology investigation or in analyzing any health problem from a research
perspective. It is sometimes called the natural history of a disease and begins with defining the
differences, similarities, and correlations of key areas of any health problem
Question 14: 5 W's
Answer: what (health concern), who (person), where (place), when (time), why/how (causes, risk factors
and modes of transmission)
Question 15: Specificity
Answer: true negatives
Question 16: Sensitivity
Answer: true positives
Question 17: Validity
Answer: the ability of that test to distinguish correctly who has the disease Positive Predictive Value
(PPV) proportional value of the proportion of people in any given population who are screened as
positive and who actually have the disease. It is the number or true positives divided by everyone else
who tested positive.
Question 18: Negative Predictive Value (NPV)
Answer: probability that a result is a true negative. It is the number of true negatives divided by all of
those who tested negative.
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with Verified Answers (Correct Update)
Question 1: with COMPLETE Solutions
Answer: Epidemiology the science of public health
Question 2: Epidemiology
Answer: the science of public health
Question 3: Population Health
Answer: focuses on risk, data, demographics, and outcomes
Question 4: HP2020
Answer: national document with agreed upon natural objectives that guide and assist population health
across the lifespan.
Question 5: Social Determinants of Health
Answer: housing, education, access to public transportation, access to safe water, access to fresh food,
and the built environment, are all related to a population's health.
Question 6: Surveillance Systems
Answer: collection, analysis, dissemination of data
Question 7: Screening (tools)
Answer: should be tested and have available statistics that speak to their specificity, sensitivity and
positive predictive value (PPV)
Question 8: Primary Prevention
Answer: prevention measure that occur before disease process. Primary prevention refers to the process
of altering susceptibility or reducing exposure to susceptible
Question 9: individuals and includes general health promotion and specific measures designed to
prevent
Answer: disease prior to a person getting the disease
Page 1
, Question 10: Secondary Prevention
Answer: early detection and prompt treatment of a disease at the earliest possible stage are referred to as
secondary prevention. The goals of secondary prevention are to either identify and cure a disease at a
very early stage or slow its progression to prevent complications and limit disability. Ex: health fair
Question 11: Tertiary Prevention
Answer: prevention strategies are implemented during the middle or late stages of clinical disease and
refer to measures taken to alleviate disability and restore effective functioning. Attempts are made to
slow the progression or to cure the disease. ex: rehab
Question 12: Epidemiological Triad
Answer: host, agent and environment
Question 13: Descriptive Epidemiology
Answer: first step in any epidemiology investigation or in analyzing any health problem from a research
perspective. It is sometimes called the natural history of a disease and begins with defining the
differences, similarities, and correlations of key areas of any health problem
Question 14: 5 W's
Answer: what (health concern), who (person), where (place), when (time), why/how (causes, risk factors
and modes of transmission)
Question 15: Specificity
Answer: true negatives
Question 16: Sensitivity
Answer: true positives
Question 17: Validity
Answer: the ability of that test to distinguish correctly who has the disease Positive Predictive Value
(PPV) proportional value of the proportion of people in any given population who are screened as
positive and who actually have the disease. It is the number or true positives divided by everyone else
who tested positive.
Question 18: Negative Predictive Value (NPV)
Answer: probability that a result is a true negative. It is the number of true negatives divided by all of
those who tested negative.
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