Essay
What is the difference between participant selection and participant assignment? How does each affect either internal or external validity in an experiment?
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Correct Answer:
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Q1: If an extraneous variable affects all groups
Q2: If two groups are unequal at the
Q3: Describe the counterbalancing procedure as it relates
Q4: In the example cited in the chapter
Q5: The best way to eliminated potential confounds
Q7: Participant selection procedures affect:<br>A) internal validity.<br>B) external
Q8: Control can help researchers make conclusions about
Q9: Experiments conducted in artificial environments may lack:<br>A)
Q10: To assign participants to groups in a
Q11: Discuss the logic of experimental design in