Cinderella effect
Noun
Meaning
Cinderella effect
(evolutionary psychology) The alleged higher incidence of child abuse and mistreatment by stepparents than by biological parents.
Examples
Infanticide by stepfathers, as well as child abuse in general by stepfathers, has been explained by spending resources on not genetically related children reducing reproductive success (See the Cinderella effect and Infanticide (zoology) ).