Exercises: Overview

Observational studies of screening might be biased, because people who choose to take screening tests are likely to engage in health-seeking behaviours more generally.

Correct Incorrect Correct answer

Trials may have chance imbalances in participant characteristics, which could allow researchers to identify who would benefit most from a screening test.

Correct Incorrect Correct answer

In an observational study, it would be difficult to measure the association between screening and health outcomes if the disease was rare.

Correct Incorrect Correct answer

Trials would be less expensive to carry out, because the researcher can study the effects of screening in a high-risk population.

Correct Incorrect Correct answer

Introduction to Study Design

Participants 174

Exercises: Overview

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question