Pennsylvania Twins (PA Twins)

The Pennsylvania Twins (PA Twins) project is a longitudinal study of twins and their parents. The first aim of this project is to build a registry of twins born in the state of Pennsylvania, in an attempt to further encourage twin research. PA Twins, Adolescents focuses on the relationships between parents and their twins with the goal of understanding the genetic and environmental influence on family relationships, and child adjustment.

PALSPAC Registry

Study Investigators:

Jenae Neiderhiser - Penn State University
Pete Hatemi - Penn State University
Hobart Cleveland – Penn State University