Researchers wanted to determine if there was an association between daily coffee

Question

Researchers wanted to determine if there was an association between daily coffee consumption and the occurrence of skin cancer. The researchers looked at 93,092 women and asked them to report their coffee-drinking habits. The researchers also determined which of the women had nonmelanoma skin cancer. After their analysis, the researchers concluded that consumption of six or more cups of caffeinated coffee per day was associated with a reduction in nonmelanoma skin cancer Complete parts (a) through (c) (a) What type of observational study was this? Explain O A. This was a case-control study because individuals that had a certain characteristic were matched with those that did not. O B. This was a cross-sectional study because all information about the individuals was collected at a specific point in time. O C. This was a cohort study because it identified a group of individuals to participate in the study and observed the group over a period of time (b) What is the response variable in the study? What is the explanatory variable? What is the response variable in the study? O A. The response variable is consumption of caffeinated coffee O B. The response variable is whether the woman has nonmelanoma skin cancer or not O C. The response variable is the number of individuals that participate in the study. What is the explanatory variable? O A. The explanatory variable is the number of individuals that participate in the study. O B. The explanatory variable is whether the woman has nonmelanoma skin cancer or not O C. The explanatory variable is consumption of caffeinated coffee.

Explanation / Answer

Solution:-
(a) option B. This was a cross-sectional study because all information about the individual was collected at a specific point in time.

(b)
=> option B. The response variable is whether the women has nonmelanoma skin cancer or not.

=> option C. The explanatory variable is consumption of caffeinated coffee.

(c) option C. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables that were not considered in a study, but thaffeinated coffee. at affect the value of the response variable.

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.