Refer to the information provided in Scenario 36.1 below to answer the question(s) that follow.
Scenario 36.1: A study of 2,500 country club members in Phoenix found that those who play golf at least 2 times per week were 40 percent more likely to have suffered from skin cancer than those who never play golf. Therefore, the study concluded that in Phoenix, playing golf at least twice a week leads to a higher incidence of skin cancer in country club members..
-Refer to Scenario 36.1. Which of the following statements pertaining to the scenario is the most accurate with respect to selection bias?
A) The conclusion exhibits selection bias in that only country club members in Phoenix were surveyed.
B) The conclusion exhibits selection bias in that there may be other factors besides playing golf more than 2 times per week that lead to a higher incidence of skin cancer in those members.
C) The study exhibits selection bias in that it is only concerned with skin cancer incidence in country club members.
D) The scenario does not exhibit selection bias.

Question

Refer to the information provided in Scenario 36.1 below to answer the question(s) that follow.
Scenario 36.1: A study of 2,500 country club members in Phoenix found that those who play golf at least 2 times per week were 40 percent more likely to have suffered from skin cancer than those who never play golf. Therefore, the study concluded that in Phoenix, playing golf at least twice a week leads to a higher incidence of skin cancer in country club members.. 
-Refer to Scenario 36.1. Which of the following statements pertaining to the scenario is the most accurate with respect to selection bias?
A) The conclusion exhibits selection bias in that only country club members in Phoenix were surveyed.
B) The conclusion exhibits selection bias in that there may be other factors besides playing golf more than 2 times per week that lead to a higher incidence of skin cancer in those members.
C) The study exhibits selection bias in that it is only concerned with skin cancer incidence in country club members.
D) The scenario does not exhibit selection bias.

Quizplus · Accepted Answer

Selection bias occurs when there is a systematic difference between the characteristics of those who are included in the study compared to those who are not, which can lead to incorrect conclusions. In this scenario, the conclusion that playing golf at least twice a week leads to a higher incidence of skin cancer in country club members may be biased because there may be other factors that contribute to skin cancer incidence in these members. For example, country club members may have more disposable income and be more likely to spend time outside, which could increase their risk for skin cancer. Additionally, the study only surveyed country club members in Phoenix, which limits its generalizability to other populations. Therefore, alternative explanations for the observed association cannot be ruled out, adding to the possibility of selection bias.

Refer to the Information Provided in Scenario 36