Epidemiological Statistical Measures

Epidemiology

An overview of fundamental statistical tools in epidemiology, including frequency, association, and impact measures used to analyze health problems in populations.

Statistics Public Health Medicine

10 Questions Hard Ages 18+ Apr 17, 2026

Practice Test PDF Answer Key PDF

Choose a Study Format

Quiz

Test your knowledge with multiple-choice questions and instant feedback.

Flashcards

Flip through cards to review terms, definitions and key concepts.

True or False

Quickly decide if statements are true or false to reinforce understanding.

Match Game

Race against time to match questions with their correct answers.

Study Guide

Read through all topics and answers as a comprehensive study reference.

Listen Mode

Listen to questions and answers read aloud — great for audio learners on the go.

Embed This Study Set

Add this interactive study set to your website or blog — all 6 formats included.

<div data-quixly-id="1889"></div>
<script src="https://www.quixlylearn.com/assets/embed/widget.js"></script>

Learn more about embedding →

About this Study Set

This study set covers Epidemiology through 10 practice questions. An overview of fundamental statistical tools in epidemiology, including frequency, association, and impact measures used to analyze health problems in populations. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Epidemiological Statistical Measures study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the primary focus of epidemiology?

A Individual patient diagnosis
B Populations and groups of subjects
C Clinical drug manufacturing
D Hospital administration

2 Which measure quantifies the proportion of subjects with a disease at a specific moment?

A Incidence density
B Point prevalence
C Standardised mortality ratio
D Attributable risk

3 What does the denominator of Incidence Density (ID) represent?

A Total population at start
B Total population at end
C Sum of individual observation times
D Number of new cases

4 Which measure is defined as the ratio of the risk of disease in exposed versus unexposed groups?

A Relative Risk (RR)
B Number Needed to Treat (NNT)
C Standardised Mortality Ratio (SMR)
D Population Attributable Risk (PAR)

5 What does an NNT value closer to 1 signify?

A The treatment is ineffective
B The treatment is highly effective
C The treatment is harmful
D The study is biased

6 When is the Odds Ratio (OR) most similar to the Relative Risk (RR)?

A When the disease is very common
B When the study is a clinical trial
C When the disease occurs infrequently
D When the population is small

7 What is the main advantage of using Incidence Density (ID) over Accumulated Incidence (AI)?

A It is easier to calculate
B It is only for short-term studies
C It can be used for dynamic or open populations
D It does not require time data

8 What does the Number Necessary to Harm (NNH) measure?

A The number of people needed to prevent a disease
B The frequency of a disease in a population
C The population exposed to a risk factor
D The number of patients required before an adverse event appears

9 What is the primary purpose of the Standardised Mortality Ratio (SMR)?

A To compare observed mortality with expected mortality
B To calculate the prevalence of a rare disease
C To measure the speed of disease evolution
D To determine the incubation period

10 In epidemiology, why is comparison considered a basic element?

A Because it is required by law
B Because it enables the evaluation of healthcare problems in populations
C Because it simplifies data collection
D Because it removes the need for statistics

📱

Study on the go

Download Quixly and access all study formats on your phone — anywhere, anytime.