Multiple Choice
How should a researcher guard against diffusion of treatment?
A) Be sure to randomly assign participants to groups.
B) Do not choose participants who have very high or very low scores.
C) Check experimental equipment every day.
D) Tell participants not to talk to others about the experiment.
Correct Answer:

Verified
Correct Answer:
Verified
Q15: Describe the internal validity threat of testing
Q41: Which of the following animal species is
Q42: Explain why controlling many factors increases internal
Q43: What is the most important property of
Q44: Angela conducts a study demonstrating that active
Q45: What is cross-cultural psychology? Why is it
Q48: Generalizability is most closely associated with<br>A) internal
Q49: Which of the following groups is overrepresented
Q50: Anderson and Bushman (1997) argue that if
Q51: What is multiple-treatment interference?<br>A) A threat to