According to Cognitive Evaluation Theory (CET), external rewards can influence intrinsic motivation in multiple ways. For instance, a quarterback whose coach criticizes every decision he makes in practice and games may feel , causing his intrinsic motivation to .

For instance, a quarterback whose coach criticizes every decision he makes in practice and games may feel threatened, causing his intrinsic motivation to perform excellently.

Explanation:

Cognitive Evaluation Theory is a theory based on the relationship between the cognition of human mind, perception and its external cognition which manifest physically. The external cognition is greatly influenced by the internal cognition leading to the observable results witnessed.

In the case of the quarterback, the criticism from his coach will make him feel threatened and probably going to be dropped from the team (percepion by his mind). This internal cognition would trigger his external cognition leading to him making extra efforts to perform in that particular match ( physical manifestation of the external cognition leading to achieving the desired result).

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