A study of the "efficiency and efficacy" of evaluation practices of the Illinois Division of Vocational and Technical Education as conducted by Educational Testing Service is reported on. The study was directed toward understanding how evaluation practices of the Division, with largest emphasis upon the performance of the Three Phase System used to conduct statewide evaluation of occupational programs, might be improved over successive months and years. Analysis of the System was conducted by use of several methodologies: (1) interviews of Division personnel, (2) sampling of agencies for study, (3) collection of data from record systems of the Division, (4) submission of questionnaires to planners and team members, and (5) independent study of trends in statewide evaluation. Outcomes of the Three Phase System suggest it is well received by local education agencies and by the team members who have contributed to it. However, it has numerous deficiencies most of which arise from the fact that it does not emphasize or produce product information. Among the favorable features of the System is its self-reactance. Long and short range recommendations for changes in system planning and functioning conclude this report. (Author/CK)