The sample was selected from juvenile inmates who were
incarcerated in the 1960s in three institutions of the California Youth
Authority: Preston (N = 1,715), Northern California Youth Center (N =
982), and Fricot (N = 210).
All juvenile inmates in California who were incarcerated in
the 1960s in institutions of the California Youth Authority.
inmate files of the California Youth Authority, and
official arrest records of the California Bureau of Criminal
Investigation, the Federal Bureau of Investigation, and the California
Bureau of Vital Statistics
administrative records data