XIVCognitive Bias
Horn Effect
Your bias is Horn Effect. A negative impression in one area colors overall judgment.
Why This Bias Happens
As with the halo effect, the mind seeks a single story. A flaw in one domain stains all others.
Example 1
Epictetus asks us to judge by actions and principles, not by passing irritation. This blocks unfair general condemnation.
Example 2
Personnel studies show one disliked trait can reduce ratings of unrelated competencies.