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CPH - ALL SAMPLE EXAM LATEST UPDATE THIS
YEAR (2026-2027) ALL 300 QUESTIONS AND
CORRECT ANSWERS WITH RATIONALES
1. A population of rural women experiences a high rate of mortality related to breast cancer.
Researchers at a local university implement a breast cancer screening intervention. This
intervention is an example of:
A) Tertiary prevention
B) Advocacy
C) Secondary prevention
D) Primary prevention
Answer: C
Secondary prevention includes screening and early detection activities that identify disease in its
earliest stages before symptoms appear. Breast cancer screening is a classic example of
secondary prevention.
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2. When a person is healthy, without signs and symptoms of disease, illness, or injury, the
level of prevention most appropriate would be:
A) Primary prevention
B) Secondary prevention
C) Tertiary prevention
D) No prevention level is needed
Answer: A
Primary prevention aims to prevent disease or injury before it occurs. This is the most
appropriate level for healthy individuals without signs of disease.
3. Which of the following is expressed as a count?
A) Incidence rate
B) Prevalence proportion
C) Number of cases
D) Mortality rate
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Answer: C
A count is the absolute number of cases or events. Rates, proportions, and ratios are relative
measures. Examples include the number of COVID-19 cases reported in a given week.
4. Which of the following is expressed as a proportion?
A) Incidence rate
B) Prevalence
C) Attack rate
D) Crude death rate
Answer: B
Prevalence is the proportion of a population that has a disease at a given point in time. It is
expressed as a percentage or proportion (e.g., 15% of adults have hypertension).
5. Which of the following is expressed as a ratio?
A) Sex ratio
B) Attack rate
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C) Incidence rate
D) Case fatality rate
Answer: A
A ratio compares two quantities without regard to time. The sex ratio (number of males divided
by number of females) is a simple ratio. Rates involve time in the denominator.
6. Which of the following is expressed as a rate?
A) Prevalence
B) Sex ratio
C) Incidence rate
D) Proportion of cases
Answer: C
A rate measures the frequency of an event in a population over a specified period of time.
Incidence rate = number of new cases / person-time at risk.
7. The measure of disease frequency that accounts for the timing of events is:
4
CPH - ALL SAMPLE EXAM LATEST UPDATE THIS
YEAR (2026-2027) ALL 300 QUESTIONS AND
CORRECT ANSWERS WITH RATIONALES
1. A population of rural women experiences a high rate of mortality related to breast cancer.
Researchers at a local university implement a breast cancer screening intervention. This
intervention is an example of:
A) Tertiary prevention
B) Advocacy
C) Secondary prevention
D) Primary prevention
Answer: C
Secondary prevention includes screening and early detection activities that identify disease in its
earliest stages before symptoms appear. Breast cancer screening is a classic example of
secondary prevention.
1
, Page 2 of 181
2. When a person is healthy, without signs and symptoms of disease, illness, or injury, the
level of prevention most appropriate would be:
A) Primary prevention
B) Secondary prevention
C) Tertiary prevention
D) No prevention level is needed
Answer: A
Primary prevention aims to prevent disease or injury before it occurs. This is the most
appropriate level for healthy individuals without signs of disease.
3. Which of the following is expressed as a count?
A) Incidence rate
B) Prevalence proportion
C) Number of cases
D) Mortality rate
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Answer: C
A count is the absolute number of cases or events. Rates, proportions, and ratios are relative
measures. Examples include the number of COVID-19 cases reported in a given week.
4. Which of the following is expressed as a proportion?
A) Incidence rate
B) Prevalence
C) Attack rate
D) Crude death rate
Answer: B
Prevalence is the proportion of a population that has a disease at a given point in time. It is
expressed as a percentage or proportion (e.g., 15% of adults have hypertension).
5. Which of the following is expressed as a ratio?
A) Sex ratio
B) Attack rate
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C) Incidence rate
D) Case fatality rate
Answer: A
A ratio compares two quantities without regard to time. The sex ratio (number of males divided
by number of females) is a simple ratio. Rates involve time in the denominator.
6. Which of the following is expressed as a rate?
A) Prevalence
B) Sex ratio
C) Incidence rate
D) Proportion of cases
Answer: C
A rate measures the frequency of an event in a population over a specified period of time.
Incidence rate = number of new cases / person-time at risk.
7. The measure of disease frequency that accounts for the timing of events is:
4
