Final answer:
The study about soda consumption influencing diabetes is an observational study, demonstrating correlations but not proving causation.
Explanation:
Observational Study
The study described, where individuals diagnosed with diabetes are compared to controls based on soda consumption, is an observational study. This identification is supported by the absence of random assignment to treatment/control groups, which is a characteristic of observational studies.
Causation vs. Correlation
Observational studies can only establish correlations and not causations. In this case, while the study may show a relationship between soda consumption and diabetes, it cannot definitively prove that higher soda consumption causes diabetes due to the nature of observational studies.
Learn more about types of scientific studies here:
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