1. Department of Education and Science. External Examinations in Schools for the Deaf and Partially Hearing and Opportunities for Further Education. Ref. SS 41/65/03, dated 2/8/72.
2. Thanks are owed to Major B. Connors of the Open University Institute of Educational Technology for help in devising this test.
3. Kleper, M. and Barnes, G. Film Captioning by Independent Slide Projection. National Technical Institute for the Deaf, Rochester, New York.