Multiple Choice
A researcher is carrying out a quasi-experimental study. She has the experimental groups in one lab and a control group in another lab. During the intervention phase of her study, the control school has a small fire that forces participants to leave the lab for one hour. She finds huge differences between the experimental and control groups after the study is completed. While there could be an effect of her intervention, a possible rival hypothesis might be:
A) There was a maturation effect
B) There was an instrumentation effect
C) There was a differential history or selection-history effect
D) There was a selection-maturation effect
Correct Answer:

Verified
Correct Answer:
Verified
Q10: What is the primary threat to internal
Q11: One strategy for dealing with preexisting differences
Q12: What is the "interruption" in an interrupted
Q13: Selection is a threat to the internal
Q14: Quasi-experimental designs lack the controls of strong
Q16: In an) _design, the experimenter takes multiple
Q17: What is the main distinction between the
Q18: In which of the following circumstances would
Q19: In the physical education department, Dr. Shanz
Q20: The nonequivalent comparison group design can yield