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Based on the concept of the explanatory goal of science, explain what the researchers are attempting to understand in their follow-up study by measuring inflammatory markers and distress scores.
Case context: A team of researchers observes that patients who use medical marijuana report fewer days of severe pain than patients who do not. They decide to design a follow-up study to measure the patients' blood levels of inflammatory markers and their scores on a questionnaire assessing anxiety and distress about their pain.
Question: Based on the concept of the explanatory goal of science, explain what the researchers are attempting to understand in their follow-up study by measuring inflammatory markers and distress scores.
Sample answer: By measuring inflammatory markers and distress scores, the researchers are attempting to understand the specific mechanisms by which marijuana alleviates pain. They have already noted the correlation between marijuana use and pain relief, and are now exploring the causal pathways to determine if the drug primarily acts by reducing physical inflammation or by decreasing the psychological distress associated with the pain.
Key points:
- Recognizes the shift from observing a correlation to seeking a scientific explanation.
- Identifies that the study aims to uncover the causal pathways or mechanisms of pain relief.
- Connects the inflammatory markers to the potential mechanism of reducing physical inflammation.
- Connects the distress scores to the potential mechanism of reducing psychological distress.
Rubric: Full credit given if the learner accurately explains that the researchers are moving beyond correlation to identify causal mechanisms, specifically mapping the variables (inflammatory markers and distress scores) to physical and psychological pathways.
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Research Methods in Psychology - 4th American Edition @ KPU
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