Multiple Choice
A researcher notices that the participants assigned to the experimental group were less likely to attend the second session in his experiment than those in the control group. The researcher is concerned that __________ might represent a potential threat to the internal validity of her study.
A) history
B) attrition
C) instrumentation
D) maturation
Correct Answer:
Verified
Correct Answer:
Verified
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Q7: Describe six threats to internal validity identified
Q8: The notion that subjects are often motivated
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