Which of the following statements about subject bias is most correct?
A) Subject bias is when participants are aware of the expected outcome of the experiment and knowingly alter their behaviour.
B) Subject bias can be reduced or even prevented by making the conditions of the experiment as similar as possible between the experimental and control groups.
C) Subject bias can be reduced or even prevented by using a between subjects design where there are different participants in each condition.
D) Subject bias occurs when a subject`s prior knowledge affects their performance in an experiment.
Answer: B