580 twin families were initially recruited as subjects for one of two studies of infant twins, the Twin Infant Project, or the MacArthur Longitudinal Twin Study (MALTS). Twins were born between Aug. 9th, 1984, and Dec. 12, 1990 in the state of Colorado.
TO ACCESS DATA, YOU WILL NEED THE USERNAME AND PASSWORD THAT WAS GIVEN TO YOU. IF YOU LOST YOUR PASSWORD, OR ARE A COLLEAGUE THAT NEEDS ACCESS, PLEASE EMAIL SALLY ANN RHEA, OUR PROJECT COORDINATOR, AT rhea@colorado.edu.
DATA ACCESS HERE