Preschool children face expulsion rates three times higher than children in kindergarten through 12th grade—a factor partly attributed to lack of attention to social-emotional needs

African-American preschoolers are 3 to 5 times more likely to be expelled than their white, Latino, or Asian-American peers.
SOurce: Gilliam, W. S. (2005). Prekindergartens left behind: Expulsion rates in state prekindergarten programs (FCD Policy Brief Series 3). New York, NY: Foundation for Child Development.