Ally is a subject in an experiment. She purposely tries harder since she knows she is being watched. This is an example of: a. a biased sample.
b. replication.
c. participant bias.
d. confirmation bias.

participant bias

Explanation:

tbh i didnt even learn this nor im prob EVER gunna learn this but based on the example i think its participant bias soo yea..hopefully this helps you

answer; love and belonging needs;