Answer:
Family size might adversely affect the production of child quality within a family. ... Controlling for parental family income, parental age at birth and family level attributes, we find that children from larger families have lower levels of education and that there is in addition a separate negative birth order effect.
The correct answer is that they are likely to have been sexually abused in their childhood. This is a serious problem because it damages their psyche as many can start to believe that it is a normal thing to do and start abusing others, or they have long term problems like depression and anxiety because of it.
