The three types of control discussed when dealing with extraneous variables are:
A)Physical, Mental, Statistical
B)Physical, Design, Statistical
C)Design, Mental, Statistical
D)Physical, Emotional, Design

Question

Quizplus · Accepted Answer

Physical control involves manipulating the physical environment to eliminate or reduce the influence of extraneous variables. Design control involves using appropriate experimental design to minimize the impact of extraneous variables. Statistical control involves statistical procedures to remove the effect of extraneous variables that cannot be eliminated through physical or design control. Mental and emotional control are not discussed as types of control for extraneous variables.

The Three Types of Control Discussed When Dealing with Extraneous