The objectives of the annual survey of hearing impaired children and youth which are presented are to collect, process, and disseminate statistical information on characteristics of all hearing impaired individuals through college age. One aspect of this work is described through results of the administration of the Stanford Achievement Tests (Form W) to about 12,000 hearing impaired children from 70 schools and 39 classes. A description of the tests, the methodology and sources of the data, and the qualifications and limitations of the data are included. Also provided are detailed tables of the results of the test batteries and a description of these tables. It was noted that the test results should be considered limited because the Stanford Achievement Tests were developed for hearing students. Appendixes include an annual census form, a description of the sub-tests of the Wechsler, and a list of participating schools. (JM)