Read the article "Selective and unselective romantic desire..." and answer the following questions about it.
1. Is the study a descriptive study, a correlational study, or an experiment? Explain.
2. Is the statement "We like those who like us but we don't like those who like everybody" consistent with the findings of this study? Explain.
3. An unrelated thought question: When can correlational evidence help answer a causal question?