Texts: Read "Dr. Joseph Goldberger and the War on Pellagra" story. Answer the following questions:
2. What evidence shows that Pellagra is not caused by a germ? Give at least two examples for full credit.
3. A dietary deficiency of the vitamin __________ caused Pellagra.
4. Fortification with ___________ cured Pellagra in the south.
5. Lombroso thought that spoiled or moldy corn caused Pellagra while Goldberger was convinced that a dietary deficiency caused Pellagra. Describe an experiment that you might conduct to demonstrate which of these two hypotheses is correct. Your experiment should be a human or animal intervention that satisfies the criteria in the textbook chapter "Types of Scientific Studies."
Observation:
Hypothesis:
Type of scientific study (shoot for the "gold-standard"):
Control group:
Experimental group(s):
Possible results:
Conclusion/Policy recommendation:
When you encounter news of a study that shows that people who eat more fruits get fewer colds, does this type of study show causation or correlation? Provide an explanation for the answer you chose.
You encounter news of a study where one group of people were given a diet plan and told to follow it, and another group of people were given a diet plan, told to follow it, and met each week as a group with a health educator. The group that met with the health educator complied more closely with their diet. Does this study show causation or correlation? Provide an explanation for the answer you chose.