Which of the Following Is an Example of the 'Experimenter

Multiple Choice

Which of the following is an example of the 'experimenter effect'?

A) The results of a study confirmed what the researcher was hoping they would confirm.
B) Researchers who interacted with participants knew which treatments were given to which participants before the data collection process began, and had certain expectations for the outcomes.
C) The researchers were not properly trained on how to record the data and this affected the accuracy of the results.
D) All of the above.