Benjamin S. Wright, William G. Doerner, John C. Speir American Journal of Police http://heinonline.org/HOL/Page?handle=hein.journals/ajpol9&div=41&g_sent=1&collection=journals#601 1990 Date Sat, 06/21/2014 - 06:35 AM Research Types Criminal Justice System Field Training Officer Programs Law Enforcement Performance Psychological Testing William G. Doerner