Incentive Contamination

Feedback asks you to expose mistakes so you can learn; evaluation asks you to defend evidence of competence. When both arrive through the same channel, the attached stakes change the message. Instead of asking, “What can I learn?”, you start asking, “What admission will cost me?” That shift activates defensive reasoning and turns correction into bargaining, impression management, or threat assessment. This is incentive-design operating inside a conversation: behavior follows the consequence attached to candour, not the stated promise that the discussion is developmental. Over time, incentive-shaping may teach people to produce whatever signals the evaluator rewards rather than reveal where they actually need help.

A manager cannot make the power relationship disappear merely by labelling one meeting “feedback” and another “performance review.” If comments can still influence pay or rank later, caution remains rational. Nor does contamination prove the feedback false; it means the channel makes its learning value harder to recover. The relevant incentive is the consequence the employee expects, not the manager’s declared intent.