Described is a prevocational evaluation and training program which serves 30 educable and trainable mentally handicapped students, 16 to 21 years of age, by simulating actual work conditions and training students in social behaviors, grooming, attitudes, and skills appropriate to a work environment. Procedures are explained for student referral and program admittance through interviews and criteria based grading. Included in the color coded program description are requirements for students' assessments with 20 preskill tests ranging in difficulty from a simple test of color discrimination and shape perception to tests with sheltered workshop standards, such as a packaging exerciseinvolving visual and verbal instructions and identification of two from three dimensional representations. The unit on job sampling and simulated production is said to require students' integration of individual skills to complete 12 monitored and evaluated tests, such as cable clamp assembly or working cooperatively in assembling objects on a line. Given for the unit work program are directions, objectives, materials required, and evaluative procedures for five units in areas such as maid service or custodial training. Included are summaries of tests which are administered after retesting on preskill tests, and procedures for developing a formal evaluation report which is sent to vocational rehabilitation or institutional placement for the student's appropriate employment. Other considerations involve a token economy program after the job sampling phase, and results of studies on reliability and validity of the tests. Included are representative forms, evaluation standards, charts, and illustrations. (MC)