Based on the provided context, explain why Dr. Aris's conclusion is incorrect. How should she describe the findings in terms of causal interpretations?
Case context: Dr. Aris conducts a complex correlational study to investigate the relationship between screen time () and attention span () in children. She finds a complex pattern of statistical relationships: screen time is negatively correlated with attention span, even after statistically controlling for age () and parental supervision (). Dr. Aris concludes that her study has successfully proved that screen time causes a reduction in children's attention span.
Question: Based on the provided context, explain why Dr. Aris's conclusion is incorrect. How should she describe the findings in terms of causal interpretations?
Sample answer: Dr. Aris's conclusion is incorrect because even complex correlational research cannot unambiguously establish that screen time causes a reduction in attention span. Since her approach is purely correlational, she should instead describe her findings as demonstrating patterns of statistical relationships that are consistent with the interpretation that screen time causes attention difficulties, and inconsistent with some other interpretations, without claiming absolute causal proof.
Key points:
- Dr. Aris cannot unambiguously establish that screen time causes attention difficulties.
- The study remains purely correlational despite controlling for age and parental supervision.
- The findings should be framed as statistical patterns consistent with some causal interpretations and inconsistent with others.
Rubric: The student must explain that complex correlational research cannot unambiguously establish causality (1 point), note that the design is purely correlational (1 point), and suggest describing the findings as patterns of statistical relationships that are consistent with some causal interpretations and inconsistent with others (1 point).
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Research Methods in Psychology - 4th American Edition @ KPU
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