Multiple Choice
In an experimental study, a subject characteristics threat may be present if:
A) experimental and control groups differ in size
B) age is related to the dependent variable
C) age is the independent variable
D) both A and B are correct
Correct Answer:

Verified
Correct Answer:
Verified
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
Q26: In which of the following is a
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
Q32: Which is the least-effective means of controlling