Math  /  Data & Statistics

Question38. Researchers are conducting a survey of 100 randomly selected athletes. They are concerned their survey contains non-response bias. What is one thing they could do to reduce the effects of non-response bias? A. They could make sure the 100 athletes contain both male and female athletes. B. They could make sure the 100 athletes contain people of various races. C. They could follow-up with any athletes who did not respond to the survey the first time. D. They could use email for the survey since so many people have email.

Studdy Solution

STEP 1

1. Non-response bias occurs when individuals who do not respond to a survey differ in relevant ways from those who do respond.
2. The goal is to reduce the effects of non-response bias on the survey results.

STEP 2

1. Define non-response bias and its impact on survey results.
2. Identify methods to reduce non-response bias.
3. Evaluate each option provided in the problem.

STEP 3

Define non-response bias: Non-response bias happens when the answers of respondents differ in meaningful ways from the potential answers of those who did not respond.

STEP 4

Identify methods to reduce non-response bias. One common method is to follow-up with non-respondents to encourage their participation.

STEP 5

Evaluate Option A: Ensuring the sample contains both male and female athletes can help ensure diverse responses but does not directly address non-response bias.

STEP 6

Evaluate Option B: Ensuring the sample contains people of various races can help ensure diverse responses but does not directly address non-response bias.

STEP 7

Evaluate Option C: Following up with athletes who did not respond to the survey the first time directly addresses non-response bias by attempting to collect responses from those who initially did not participate.

STEP 8

Evaluate Option D: Using email for the survey may increase the overall response rate but does not specifically target non-respondents to reduce non-response bias.

STEP 9

Conclusion: The best way to reduce non-response bias among the given options is Option C, because following up with non-respondents increases the likelihood of obtaining responses from those who initially did not participate.
Solution: Option C is the best way to reduce non-response bias: "They could follow-up with any athletes who did not respond to the survey the first time."

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