Practice Quiz

EPPP Psychology

Category - Research Methods and Statistics

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In the context of controlling threats to internal validity in a study, there is a difference between random assignment and random selection. Which of the following statements is true regarding random assignment and random selection?
  1. Assignment is how people are chosen.
  2. Selection is what group people are placed in.
  3. Selection is adding additional groups.
  4. Selection is how people are chosen for a study.
Explanation
Answer: D - Selection is how people are chosen and assignment is how they are placed in groups.
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