CPH EXAM SAMPLE STUDY GUIDE 2026
COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT
VERSION>
Domain 1: Evidence-Based Public Health
1. What is the primary purpose of a systematic review?
a) To provide a narrative summary of the literature on a topic.
b) To identify and synthesize all relevant studies on a specific question using a
systematic method to minimize bias.
c) To conduct a new primary data analysis on a public health issue.
d) To generate new hypotheses for future research.
Answer: b) A systematic review aims to comprehensively locate, appraise, and
synthesize all empirical evidence that fits pre-specified eligibility criteria to answer
a specific research question, using explicit, systematic methods to minimize bias.
2. The null hypothesis (H₀) in a research study typically states:
a) There is a statistically significant difference between groups.
b) The intervention was effective.
c) There is no association or difference between the variables being studied.
d) The research hypothesis is correct.
Answer: c) The null hypothesis is a default position that there is no relationship or
no difference. Statistical testing evaluates the strength of evidence against the null
hypothesis.
3. A public health practitioner wants to assess the relationship between daily
sugar consumption and the incidence of Type 2 Diabetes. Which study design
is most appropriate for establishing causality?
a) Cross-sectional study
b) Case-control study
,c) Randomized Controlled Trial (RCT)
d) Ecological study
Answer: c) An RCT, where participants are randomly assigned to an intervention
(e.g., low-sugar diet) or control group, is the gold standard for establishing
causality because randomization helps eliminate confounding.
4. A p-value of 0.03 in a hypothesis test indicates:
a) There is a 3% probability that the null hypothesis is true.
b) The effect size is clinically significant.
c) If the null hypothesis were true, there is a 3% probability of observing the
results (or more extreme) by chance alone.
d) The alternative hypothesis is false.
Answer: c) The p-value is the probability of obtaining results as extreme as the
observed results, assuming the null hypothesis is true. A small p-value (typically
<0.05) provides evidence against the null hypothesis.
5. Which of the following is a key characteristic of a good public health
surveillance system?
a) It is exclusively based on laboratory reports.
b) It is simple, flexible, and acceptable to its users.
c) It collects data on every possible health event.
d) It does not require evaluation once implemented.
Answer: b) According to the CDC, key attributes of an effective surveillance
system include simplicity, flexibility, data quality, acceptability, sensitivity,
predictive value positive, representativeness, timeliness, and stability.
Domain 2: Communication
6. The process of translating complex scientific findings into messages that are
easily understood by the general public is known as:
a) Scientific jargon
b) Risk communication
, c) Data encryption
d) Peer review
Answer: b) Risk communication is the real-time exchange of information, advice,
and opinions between experts and people facing threats to their health, economic,
or social well-being. It requires translating complex data into actionable
information.
7. When communicating during a public health crisis, which principle is most
critical?
a) Releasing all information only after a full investigation is complete.
b) Being first, right, and credible.
c) Using technical language to maintain accuracy.
d) Communicating only through formal press releases.
Answer: b) The principle of "be first, be right, be credible" is a cornerstone of
crisis and emergency risk communication (CERC). It emphasizes the importance
of timely, accurate, and trustworthy information to build public trust.
8. Cultural competency in public health communication primarily involves:
a) Speaking multiple languages fluently.
b) Understanding and respecting the cultural beliefs, values, and language of the
target audience.
c) Replacing traditional media with social media.
d) Using the same message for all demographic groups.
Answer: b) Cultural competency is the ability to interact effectively with people of
different cultures. It involves self-awareness, cultural knowledge, and adapting
approaches to be respectful and effective.
9. What is the primary goal of health literacy initiatives?
a) To improve the reading level of patients.
b) To ensure individuals have the capacity to obtain, process, and understand basic
health information needed to make appropriate health decisions.
c) To train more medical interpreters.
d) To simplify insurance forms.
COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT
VERSION>
Domain 1: Evidence-Based Public Health
1. What is the primary purpose of a systematic review?
a) To provide a narrative summary of the literature on a topic.
b) To identify and synthesize all relevant studies on a specific question using a
systematic method to minimize bias.
c) To conduct a new primary data analysis on a public health issue.
d) To generate new hypotheses for future research.
Answer: b) A systematic review aims to comprehensively locate, appraise, and
synthesize all empirical evidence that fits pre-specified eligibility criteria to answer
a specific research question, using explicit, systematic methods to minimize bias.
2. The null hypothesis (H₀) in a research study typically states:
a) There is a statistically significant difference between groups.
b) The intervention was effective.
c) There is no association or difference between the variables being studied.
d) The research hypothesis is correct.
Answer: c) The null hypothesis is a default position that there is no relationship or
no difference. Statistical testing evaluates the strength of evidence against the null
hypothesis.
3. A public health practitioner wants to assess the relationship between daily
sugar consumption and the incidence of Type 2 Diabetes. Which study design
is most appropriate for establishing causality?
a) Cross-sectional study
b) Case-control study
,c) Randomized Controlled Trial (RCT)
d) Ecological study
Answer: c) An RCT, where participants are randomly assigned to an intervention
(e.g., low-sugar diet) or control group, is the gold standard for establishing
causality because randomization helps eliminate confounding.
4. A p-value of 0.03 in a hypothesis test indicates:
a) There is a 3% probability that the null hypothesis is true.
b) The effect size is clinically significant.
c) If the null hypothesis were true, there is a 3% probability of observing the
results (or more extreme) by chance alone.
d) The alternative hypothesis is false.
Answer: c) The p-value is the probability of obtaining results as extreme as the
observed results, assuming the null hypothesis is true. A small p-value (typically
<0.05) provides evidence against the null hypothesis.
5. Which of the following is a key characteristic of a good public health
surveillance system?
a) It is exclusively based on laboratory reports.
b) It is simple, flexible, and acceptable to its users.
c) It collects data on every possible health event.
d) It does not require evaluation once implemented.
Answer: b) According to the CDC, key attributes of an effective surveillance
system include simplicity, flexibility, data quality, acceptability, sensitivity,
predictive value positive, representativeness, timeliness, and stability.
Domain 2: Communication
6. The process of translating complex scientific findings into messages that are
easily understood by the general public is known as:
a) Scientific jargon
b) Risk communication
, c) Data encryption
d) Peer review
Answer: b) Risk communication is the real-time exchange of information, advice,
and opinions between experts and people facing threats to their health, economic,
or social well-being. It requires translating complex data into actionable
information.
7. When communicating during a public health crisis, which principle is most
critical?
a) Releasing all information only after a full investigation is complete.
b) Being first, right, and credible.
c) Using technical language to maintain accuracy.
d) Communicating only through formal press releases.
Answer: b) The principle of "be first, be right, be credible" is a cornerstone of
crisis and emergency risk communication (CERC). It emphasizes the importance
of timely, accurate, and trustworthy information to build public trust.
8. Cultural competency in public health communication primarily involves:
a) Speaking multiple languages fluently.
b) Understanding and respecting the cultural beliefs, values, and language of the
target audience.
c) Replacing traditional media with social media.
d) Using the same message for all demographic groups.
Answer: b) Cultural competency is the ability to interact effectively with people of
different cultures. It involves self-awareness, cultural knowledge, and adapting
approaches to be respectful and effective.
9. What is the primary goal of health literacy initiatives?
a) To improve the reading level of patients.
b) To ensure individuals have the capacity to obtain, process, and understand basic
health information needed to make appropriate health decisions.
c) To train more medical interpreters.
d) To simplify insurance forms.
