Disadvantages of traditional intelligence tests with handicapped children are discussed, and an alternative approach, The "Assessment of Basic Competencies" (ABC) is presented. The background and design of the ABC and the three domains of the model (language skills, math reasoning skills, and information processing skills) are delineated. Test construction information is followed by data on scoring, reliability and validity. Potential applications are considered for identification of specific learning disabilities and mental retardation as well as assessment of student growth. A training manual for the ABC is also provided. (CL)