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.
CA car company pays participants to test drive and evaluate their new auto.
Eliminate
DA private company uses a random taste test of three different, unidentified soft drinks.
ATwo mice are given the choice between Swiss and American cheese.
BPhil and Bart race down the street to determine who is the fastest.
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.