The stereotype threat impairs performance because of guilt discrimination anxiety scapegoating

This because of b. anxiety. Anxiety is an anticipatory response to a stimulus that the person fears to face or perceive, this stimulus may be a thought, an idea or a situation, and may or may not exist, that is, the person is likely to experience anxiety in a situation that will not happen. For example, feeling anxious about the possibility of stumbling in front of colleagues, when the situation never happened.

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