Traditionally, most rehabilitation centers have evaluated a clients' vocational skills on an individual basis. Individually administered work samples, however, may not provide as much individual attention to the assessment process as is usually assumed. Two types of group work sample evaluation systems have been developed: the Valpar Work Sample #14, Integrated Peer Performance, in which clients work cooperatively on an assembly line task; and the Micro-TOWER System of Vocational Evaluation. The Micro-TOWER System consists of a series of work samples covering verbal, numerical, spatial, motor, and clerical-perception skills. The evaluation takes place in a separate room, and each of eight to ten clients are provided with an identical set of necessary equipment. During a practice period, the evaluator demonstrates the work sample, and provides assistance to the clients as they practice. During the evaluation period, clients work on their own. Some of the benefits of group evaluation include increased interaction between the evaluator and client, cost benefits, interaction between clients, and the supportive atmosphere. Some administrative problems, such as staff resistance, space requirements, staffing increases, and costs, should be anticipated. (BW)