Final answer:
When the role of random chance is disclosed to participants, it can lead to worse judgments.
Step-by-step explanation:
When the role of random chance is disclosed to participants, it can impact the quality of their judgments. The correct answer is c) they make worse judgments.
- When participants are aware of the role of random chance, they may attribute any positive outcomes to luck rather than their skills or abilities.
- This can lead to overconfidence or complacency in their decision-making, resulting in poorer quality judgments.
- On the other hand, if participants are unaware of the role of random chance, they may attribute positive outcomes to their own skills and abilities, leading to better quality judgments.