The author deals with limitations on the use of work samples as predictors of vocational success of the disabled. The predictive model is briefly reviewed and ways in which the assumptions underlying this model can be violated or altered in vocational evaluation settings are described. (Author)

The use of vocational assessment instruments with Texas special needs students was investigated as part of the requirements of the Carl D. Perkins Vocational Education Act. A nonrandom sampling method was used to identify the population. Transition from School to Work Coordinators in each of 20 regions collected 130 completed survey instruments…