1. Instructional technology and the measurement of learing outcomes: Some questions.
2. A Basis for Scaling Qualitative Data
3. T. R. HUSEK, and K. SIROTNIK, Item sampling in educational research: An empirical investigation. Paper presented at the national meetings of the American Educational Research Association, Chicago, February 1968 . Available as NAPS Document 00255 from ASIS National Auxiliary Publications Service, c/o CCM Information Sciences, Inc., 22 West 34th Street, New York City 10001. Remit $1.00 for microfiche or $3.00 for photocopies.