Multiple Choice
Which of the following would help control for bias in a pretest-posttest design?
A) Increasing the amount of time between the pretest and posttest
B) Including a control group that does not receive the treatment
C) Using fewer subjects
D) Using the posttest scores as the dependent variable
Correct Answer:

Verified
Correct Answer:
Verified
Q1: The best way to minimize the effects
Q18: The researcher compares the scores from the
Q19: The difference between an interrupted time series
Q24: Pretest-posttest designs are quasi-experiments when they do
Q27: A study was done in Pueblo, CO,
Q27: Random assignment of participants is much less
Q29: When participants are randomly assigned to levels
Q54: Attrition is best handled by inclusion of
Q57: A time series design where the "treatment"
Q60: It would be _ to randomly assign