In attempting to determine the average starting salary of your university's graduates, you conduct a survey of a recent set of graduates given to you from the gift/donation department of your university. What is wrong with this logic?
A) Predictable-world bias
B) Selection bias
C) Over-optimism bias
D) Confirmation bias

Question

Quizplus · Accepted Answer

The sample of graduates given to you by the gift/donation department is likely to be biased towards those who have found successful and high-paying jobs, leading to selection bias. Graduates who are unemployed or underemployed may not have been included in the sample. This can result in an overestimation of the average starting salary for all graduates.

In Attempting to Determine the Average Starting Salary of Your