In an experiment, subjects are put into two categories according to sex, and then each subject is randomly assigned a treatment . This is an example of...
A) confounding
B) randomized blocking
C) gender bias
D) observational studies

Question

Quizplus · Accepted Answer

Randomized blocking is a technique used in experiments to reduce variation among participants. By categorizing subjects into blocks (in this case, by sex) before randomly assigning treatments, the experiment aims to isolate the effect of the treatment from other variables (like sex). This helps in making the comparison between treatment effects more precise.

In an Experiment, Subjects Are Put into Two Categories According