The nonequivalent comparison group design can yield several possible outcomes. In one scenario, the experimental group scores higher than the control group at the start of the experiment, and only the experimental group's scores increase from pretesting to posttesting. This could reflect an influence of the independent variable. However, it could also reflect
A) a local instrumentation effect.
B) a attrition effect both groups.
C) simply that the experimental group was studied for a longer time period than the control group.
D) selection-maturation effect.
Correct Answer:
Verified
Q1: Selection is a threat to the internal
Q2: Dr. Johannsen wants to test whether recovering
Q4: When one does not have the ability
Q5: When using a quasi-experimental design, rival hypotheses
Q6: The nonequivalent comparison-group design does NOT have
Q7: You have been asked to evaluate the
Q8: The non-equivalent comparison group design is a
Q9: Which of the following designs is the
Q10: What is the main distinction between the
Q11: The internal validity threat known as "history"
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