Derek likes to bully his little brother Matt. Their mother begins to give Derek the mild punishment of a stern look every time Derek hits Matt. This is sufficient to stop Derek's bullying, and in time, Derek stops bullying Matt even when his mother is not around. According to theories of insufficient punishment, why might this happen?

Because there was insufficient external justification for resisting, Derek began to devalue the forbidden activity  

Explanation:

Insufficient theories of punishment are related to the dissonance in which a person feels the lack of sufficient external justification. This is the justification for devaluing for the forbidden things. There was an experiment was done by Aron-son and Carl-smith.

They threaten the child with mild or severe punishment when they play with their favored toys. So that none of the children play with their favored toy when they left alone. But the child who was less threatening has been played with toy more than the children who threatened more.

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."

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