Intrinsic subject characteristics that might function as extraneous variables can be controlled by

Question

Quizplus · Accepted Answer

Randomization is an extremely powerful control strategy because it essentially equalizes groups in terms of all intrinsic factors that could function as extraneous variables.
Comparisons are made between dependent variables, and manipulation involves the researcher doing something to at least some of the study's participants and then observing and measuring their responses.

Intrinsic Subject Characteristics That Might Function as Extraneous Variables Can