How do sample sizes in randomized controlled trials typically compare with other types of studies?
A) Sample sizes are larger and participants are recruited at multiple sites.
B) Sample sizes are varied in scope with participants from multiple sites.
C) Sample sizes are smaller and participants are recruited at multiple sites.
D) Sample sizes are limited in scope with participants from a single site.

Question

Quizplus · Accepted Answer

Randomized controlled trials (RCTs) often require larger sample sizes to ensure sufficient power to detect differences between groups, and participants are typically recruited from multiple sites to enhance generalizability and feasibility.

How Do Sample Sizes in Randomized Controlled Trials Typically Compare