Common
Cinderella effect
Higher prevalence of mistreatment by stepparents
Cinderella effect
In evolutionary psychology, the Cinderella effect describes the phenomenon of a higher incidence of child abuse and mistreatment by stepparents than biological parents. It takes its name from the fairy tale character Cinderella, a girl who is mistreated by her stepmother and stepsisters. Evolutionary psychologists describe this effect as being a byproduct of a bias towards biological family and a conflict between reproductive partners investing in young children who are unrelated to one partner.
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