TY  - BOOK
AU  - Bormuth,John R.
TI  - On the theory of achievement test items
SN  - 0226066304
U1  - 371.26 
PY  - 1970///
CY  - Chicago
PB  - The University of Chicago Press
KW  - Achievement tests
KW  - Educational tests and measurements
N1  - Bibliography: p. 157-159
ER  -