An impact evaluation of eight courts training project (CTP) institutes funded by the Law Enforcement Assistance Administration was conducted. After a literature search and visits to potential evaluation sites in all fifty states, twelve sites were selected from a random stratified sample of court systems. Data were obtained from 1047 respondents (including trial and appellate judges, prosecutors, defenders, and court administrators) via personal interviews and mail questionnaires. Findings included the following: (1) nearly 20 percent of the respondents cited training as a generator of organizational change within the criminal justice system or personal change; (2) participants want training; (3) most sender organizations support attendance at training programs in a variety of ways; (4) CTP institutes meet general training needs and provide a setting in which individuals can exchange ideas and discuss problems; and (5) training sessions suffer from shortcomings in needs assessment, balance of teaching methodologies, and instructor orientation. Thirty-four recommendations were made, and thirty-five tables present detailed data summaries. (The case studies and survey instruments and a manual for conducting an on-going evaluation are available through ERIC--see note.) (MN)