a dubious and likely indefensible theory that levels of intellect observed in brothers and sisters are related to the magnitude of the family unit. Thereby, it postulates that typical intellectual levels tend to decrease as the amount of kids in the family unit grows. Therefore, the more youths in the unit, the less smart they would be anticipated to be.
CONFLUENCE MODEL: “In accordance with the confluence model, Kristin would not be very intelligent being one of ten children in her home.”