While conducting research on intelligence, a group of experimenters was very careful to control for unwanted variability in such factors as age, gender, ethnic background, socioeconomic status, and so on. They took these precautions in order to avoid or minimize the influence of:
A) extraneous or confounding variables.
B) dependent or outcome variables.
C) demand characteristics.
D) practice effects.

Question

Quizplus · Accepted Answer

By controlling for unwanted variability in factors such as age, gender, ethnic background, socioeconomic status, etc., the experimenters were trying to avoid or minimize the influence of extraneous or confounding variables that might affect their results.

While Conducting Research on Intelligence, a Group of Experimenters Was