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LITTLE ROCK, Ark. (KTHV) - A new study shows spanking your child can be more damaging to them than first thought.

Studies have shown that spanking can lead to behavior problems. Researchers find it may also hurt a child's cognitive development. Harmelin Bridge scientists at Columbia University school of social work looked at nearly 2,000 children from 20 large cities in the U.S. and found that spanking is still very common.

"Over 50 percent of parents by age five were spanking their children and that was only looking at spanking in the past month," explained Dr. Michael Mackenzie of Columbia University. Children spanked at least twice a week by their mother at age 3 or 5 were more likely to break rules and act aggressively.

Doctors suggest parents take a time out themselves to think of the most effective punishment before spanking.

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