Proceedings of a conference on educational assessment are presented. A speech accompanying presentations of the 1987 Educational Testing Service Award for Distinguished Service to Measurement and a list of winners of that annual award from 1970 to 1987 are included. The nine papers provided include: (1) "How Assessment Can Best Serve Teaching and Learning" (Bill Honig); (2) "Progress in Measurement, Cognitive Science, and Technology That Can Change the Relation between Instruction and Assessment" (Richard E. Snow); (3) "Testing in the Service of Learning Science: Learning-Assessment Systems That Promote Educational Excellence and Equality" (Joseph I. Lipson); (4) "Cognitive and Environmental Perspectives on Assessing Achievement" (Robert Glaser); (5) "The Teacher's Role in Using Assessment To Improve Learning" (Robert Calfee and Elfrieda Hiebert); (6) "The Wedding of Instruction and Assessment in the Classroom" (Margaret C. Wang); (7) "The Integration of Instruction and Assessment in Technical Jobs" (Alan Lesgold); (8) "Assessing Technical Expertise in Today's Work Environments" (Sherrie P. Gott); and (9) "A Realist's Appraisal of the Prospects for Unifying Instruction and Assessment" (Nancy S. Cole). (TJH)