The New York Longitudinal Study identifies children as belonging to one of nine categories based on their inborn temperamental traits.

A. True

B. False

The answer is: B. False.

Explanation:

The New York Longitudinal study was developed from 1965 to 1988, and it aimed to create a model of child development based on several personality and temperamental traits. Researchers measured nine different qualitative and quantitative variables, by conducting interviews with the parents and with the children, once they got older.

The study used nine different variables, but the model included only three categories based on the results: the "easy children", the "difficult children" and the "slow to warm up".