keria2004
Answered

Which of these experimental designs could lead to bias?

ATwo mice are given the choice between Swiss and American cheese.
BPhil and Bart race down the street to determine who is the fastest.

Eliminate

CA car company pays participants to test drive and evaluate their new auto.
DA private company uses a random taste test of three different, unidentified soft drinks.

Verified Answer :

I believe it is B. The meaning of bias is prejudice in favor or against someone or a group compared to another in an unfair way. Many can have a one sided opinion about something such as who is going to win the race. However, choosing different cheese is more of an opinion showing which they prefer more than being bias.

C is biased because the people were paid to evaluate the car. They are more likely to say better things about it than if they weren't paid.