Multiple Choice
To test the ability of a racial tolerance program for police officers, an experimental researcher 'rides along' with police officers to observe how they interact with racial and ethnic minorities. What type of threat to the external validity of this experiment's results is this problem?
A) Reactivity
B) Selection bias
C) The combination of a and b.
D) Neither a nor b. There is no potential threat to external validity.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: An experiment applies a treatment to a
Q3: An experiment includes equivalent experimental and control
Q4: The two-group pre-test-post-test experimental design model includes
Q5: An experiment has a single experimental group,
Q6: An experimental design model would be helpful
Q7: A measure of the dependent variable prior
Q8: A measure of the dependent variable after
Q9: An experiment has equivalent experimental and control
Q10: During an experiment a researcher decides to
Q11: When research subjects change their behaviors after