What were the three groups that managers were placed into for the humility study?

• A. High, Medium, Low performance groups
• B. Control group, mistake with learning group, and mistake without learning group
• C. Learners, Non-learners, Observers
• D. Experiment group, Control group, Placebo group

Answer: (B)

This question is about how an experiment is set up to test how learning after a mistake affects humility. The three groups described are a baseline or neutral group, a group that makes a mistake and has a chance to learn from it, and a group that makes a mistake but does not get a chance to learn.

The three groups are: a control condition with no specific manipulation, a mistake-with-learning condition, and a mistake-without-learning condition. This setup isolates the effect of learning after an error on humility by comparing what happens when learning is possible versus when it isn’t, all against a neutral baseline.

Other options describe different kinds of categorization or experimental setups (like performance tiers, or terminology borrowed from medical trials such as placebo), which don’t capture the intended manipulation—whether learning follows a mistake and how that influences humility.