Which is a threat to external validity?
A) history
B) selection
C) pretest sensitization
D) regression
Correct Answer:
Verified
Q3: Which of the following is NOT one
Q4: What is the proper order of the
Q5: What term is synonymous with internal validity?
A)
Q6: Experimental research methods are used _.
A) to
Q7: What is an example of a true
Q9: What does the term ANCOVA mean?
A) analysis
Q10: In an experimental research study, which group
Q11: Susan has twelve subjects drop out of
Q12: Jim was coming down with a cold
Q13: In which of the following is randomization
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