This report contains evaluations of various phases of the Vocational Exploration in the Private Sector Program (VEPS). (VEPS is designed to provide youth with exposure to jobs available in the private sector through observation of such jobs, instruction, and, if appropriate, limited practical experience so long as the participant does not contribute to additional sales or profits of a private-for-profit organization.) The first evaluation is a preliminary analysis of the 1979 summer component of the Vocational Exploration Demonstration Project. The 1978 Summer Vocational Exploration Program is examined in the second evaluation. The third report provides a comparison of impact of the pilot and second experimental years of VEPS during the years 1972-1973. A longitudinal impact assessment of the 1971-1972 VEPS constitutes the fourth section. Topics covered in the individual evaluations include an introduction and overview of the given program, description of the evaluation design, assessment of program operations, and outcomes. (Related youth knowledge and development reports are available separately through ERIC--see note.) (MN)