TY  - BOOK
AU  - Mehrens, William A.
AU  - Ebel, Robert L.
TI  - Principles of educational and psychological measurement: a book of selected readings 
U1  - 150.15195 
PY  - 1967///
CY  - Chicago
PB  - Rand McNally & Co.
KW  - Educational tests and measurements
KW  - Psychometrics
N1  - Includes bibliographical references (p.425-426) and index
ER  -