Six essays on technical measurement problems in criterion referenced tests and four essays by psychometricians proposing solutions are presented: (1) "Criterion-Referenced Measurement" and Other Such Terms, by Marvin C. Alkin which is an overview of the first six papers; (2) Selecting Objectives and Generating Test Items for Objectives-Based Tests, by W. James Popham; (3) A Judgmental Approach to Criterion-Referenced Testing, by H. A. Wilson; (4) Measurement Considerations in Instructional Product Development, by Robert L. Baker; (5) Generating Criterion-Referenced Tests from Objectives-Based Assessment Systems: Unsolved Problems in Test Development, Assembly, and Interpretation, by Rodney W. Skager; (6) Problems in the Development of Criterion-Referenced Tests: The IPI Pittsburgh Experience, by Anthony J. Nitko; (7) Problems of Objectives-Based Measurement, by Chester W. Harris; (8) Thus Spake Psychometrika, by W. James Popham, an overview of the psychometricians' contributions; (9) Some Technical Characteristics of Mastery Tests, by Chester W. Harris; (10) The Preparation of Criterion-Referenced Tests, by Frederick B. Davis and James J. Diamond; (11) Prescribing Test Length for Criterion-Referenced Measurement, by Melvin R. Novick and Charles Lewis; (12) Empirical Validation of Criterion-Referenced Measures, by J. Ward Kessling. (MH)