Question 1
A public health researcher calculates an odds ratio of 3.2 (95% CI: 1.8–5.7) for the association between smoking and lung cancer in a case-control study. What does this result indicate?
Correct Answer:
The odds of lung cancer are 3.2 times higher among smokers compared to non-smokers, and the association is statistically significant
Question 2
Which measure of disease frequency describes the number of NEW cases of a disease occurring in a population during a specified time period?
Correct Answer:
Incidence rate
Question 3
A researcher wants to determine whether a new vaccine reduces the incidence of influenza. She randomly assigns 500 participants to receive the vaccine and 500 to receive a placebo, then follows both groups for one flu season. What type of study design is this?
Correct Answer:
Randomized controlled trial
Question 4
In biostatistics, a Type I error occurs when:
Correct Answer:
The null hypothesis is incorrectly rejected when it is actually true
Question 5
A health department tracks emergency department visits for heat-related illness during summer months using electronic health records. This is an example of:
Correct Answer:
Syndromic surveillance
Question 1
Exam overview

About this Exam

Prepare with the CPH Practice Questions - Certified in Public Health (CPH) Exam practice quiz. This question bank includes 100 questions covering health, public, program, department, and community. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

CPH Practice Questions - Certified in Public Health (CPH) Exam

This practice set contains 100 questions from the matching question bank and focuses on health, public, program, department, and community. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions