Certified Clinical Research Associate (CCRA) Practice Exam 2025 – Complete Preparation Guide

Question: 1 / 400

In trial design, which of the following is a type of design used in clinical studies?

Crossover Design

Crossover design is a type of clinical study design where participants receive a sequence of different treatments (or interventions) over time. In this design, each participant serves as their own control, which helps to reduce variability between groups and allows for direct comparisons of treatments. This method is particularly advantageous in studies where a temporary effect is observed, as it enables researchers to observe how the same subjects respond to different interventions across the trial period.

This design is particularly useful for evaluating the efficacy of treatments that have a quick onset and duration of action, as it allows researchers to manage the potential impact of inter-individual differences. By having each participant experience multiple treatment conditions, you strengthen the statistical power of the study and can potentially require fewer participants to achieve conclusive results.

Get further explanation with Examzify DeepDiveBeta

Cross-sectional Design

Descriptive Design

Longitudinal Design

Next Question

Report this question

Download Certified Clinical Research Associate (CCRA) Practice Exam 2025 – Complete Preparation Guide PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy