1. List the three criteria for establishing a causal relationship and the two cautions that can improve understanding of a causal connection

2. Explain the meaning of the expression, “correlation does not prove causation”

3. List the essential components of a true experimental design

4. Distinguish the concepts of random assignment (randomization) and random sampling

5. Explain the advantages and disadvantages of using quasi-experimental and experimental designs

6. Define five threats to validity in research

7. Discuss the most distinctive ethical challenges in experimental research