TY  - BOOK
AU  - Lord, Frederic M
TI  - Applications of item response theory to practical testing problems
SN  - 9780898590067
U1  - 371.26 LOR 
PY  - 1980///
CY  - Hillsdale, N.J
PB  - L. Erlbaum Associates
KW  - Examinations
ER  -