Multiple Choice
A researcher tries to make sure that subjects in the experimental and control groups are very similar to each other in order to reduce the effects of
A) extraneous variables.
B) random variables.
C) dependent variables.
D) independent variables.
Correct Answer:

Verified
Correct Answer:
Verified
Q128: In a study designed to test the
Q129: Scarlett is a graduate student who is
Q132: A computerized database that allows individuals to
Q133: The fact that many times researchers unintentionally
Q135: One of the main concerns with the
Q136: In experimental research,while subjects in the _
Q140: The fact that subjects sometimes report beneficial
Q172: A researcher is investigating the effects of
Q218: A psychologist measures blood alcohol level to
Q231: Estavan received a questionnaire in the mail