Description
A recent clinical study demonstrated a possible connection between coffee consumption and heart health. The researchers performed a 6-week trial with 191 individuals, all of whom were heavy coffee drinkers (average of 5 cups/day) prior to the experiment, but none of whom were smokers. They divided the 191 participants into three groups: no coffee consumption, 1-3 cups/day, and 4 or more cups/day. They measured blood levels of cholesterol and homocysteine as indicators of heart health. Only the no-coffee group showed a significant drop in both indicators. Previous studies had demonstrated that decreases of the magnitude observed in the no-coffee group could cut the incidence of heart disease by 10-15%.
a) What is the problem/question being studied?
b) What is the hypothesis?
c) What is the experimental variable?
d) List the controls.
e) What is being measured to test the hypothesis?
Explanation & Answer
Attached.
OUTLINE
1. INTRODUCTION
2. BODY
3. CONCLUSION
4. REFERENCE
RunningHead: BIOLOGY
Coffee consumption study
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BIOLOGY
2
Coffee consumption study
In this clinical study, the research question is, does the consumption of coffee affect the
heart health?
The research hypothesis is that there is a potential relationship between the heart health
and the coffee consumption.
Since all these individuals were 5 cups/day coffee drinkers, the 4 cups or more group thus
becomes the control variable in this clinical analysis....
