Multiple Choice
In which of the following is a history threat least likely to occur?
A) Experimental and control groups are in the same classroom.
B) Experimental and control groups are in different classes in the same school.
C) Experimental and control groups are in different schools.
D) Experimental and control groups are limited only to females.
Correct Answer:
Verified
Correct Answer:
Verified
Q21: Internal validity often receives little attention in
Q22: Controlling threats to the internal validity of
Q23: Which of the following is not an
Q24: Which of the following might be a
Q25: A threat to internal validity is the
Q27: In an experimental study, a subject characteristics
Q28: Matching<br>-Subject characteristics threats<br>A) Age, gender, and class<br>B)
Q29: Matching<br>-Instrumentation threat<br>A) Age, gender, and class<br>B) Unreturned
Q30: Referring to the study in item 2
Q31: Loss of subjects is a serious threat