Determine whether the study involves selection bias, participation bias, both selection bias and participation bias, or neither.A researcher published this survey result: "74% of people would be willing to spend 10 percent more for energy from a non-polluting source". The survey question was announced on a national radio show and 1200 listeners responded by calling in.

Question

A. Selection bias only
B. No bias
C. Participation bias and selection bias
D. Participation bias only

Answer 1

Answer: C