A) Provide an Informal Analysis of the Following Passage; or

A) Provide an informal analysis of the following passage; or
B) in analyzing the passage, do the following:
a. Identify the causal hypothesis at issue.
b. Identify what kind of study it is.
c. Describe the control and experimental groups.
d. State the difference in effect (or cause) between control and experimental groups.
e. Identify any problems in either the study or the report of it, including but not necessarily limited to uncontrolled variables.
f. State the conclusion you think is warranted by the report.
In 1960, Dutch researchers from the University of Leiden questioned 852 men and their wives about the men's diets and then monitored the men for the next twenty years. They found that the death rate from heart disease was more than 50 percent lower among men who ate at least thirty grams (one ounce) of fish per day compared with men who ate no fish. Just one or two fish dishes a week, the researchers say, "may be of value in the prevention of coronary heart disease."
-Adapted from Science News