How does an experimenter try to equate the experimental group and the control group?
A)The experimenter attempts to increase the demand characteristics.
B)The experimenter attempts to eliminate all independent variables.
C)The experimenter attempts to eliminate all dependent variables.
D)The experimenter uses random assignment of participants.

Question

How does an experimenter try to equate the experimental group and the control group?​
A)The experimenter attempts to increase the demand characteristics.
B)​The experimenter attempts to eliminate all independent variables.
C)​The experimenter attempts to eliminate all dependent variables.
D)​The experimenter uses random assignment of participants.

Quizplus · Accepted Answer

The best way to equate the experimental group and the control group is by using random assignment of participants. This ensures that any individual differences between the participants are distributed equally between the two groups, making them comparable. By randomly assigning participants to groups, the experimenter can minimize the possibility that differences between groups are due to preexisting individual differences or biases on the part of the experimenter.

How Does an Experimenter Try to Equate the Experimental Group