A researcher is interested in the effect of violent media content on aggression. She exposes an all-female experimental group to a violent action drama and an all-male control group to a non-violent nature documentary. Which experimental requirement has the researcher violated?
A) precision of measurement
B) randomization
C) experimental control
D) authenticity

Question

Quizplus · Accepted Answer

The researcher violated the principle of randomization by not randomly assigning participants to the experimental and control groups, potentially introducing gender as a confounding variable.

A Researcher Is Interested in the Effect of Violent Media