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) randomized blocking
B) gender bias
C) confounding
D) observational studies

Question

Quizplus · Accepted Answer

This is an example of randomized blocking because the subjects are first separated into blocks (based on their sex) and then treatments are randomly assigned within each block to avoid confounding between the treatment and sex. Gender bias, confounding and observational studies are not relevant to this scenario.

In an Experiment, Subjects Are Put into Two Categories According