TY  - BOOK
AU  - McDonald,Roderick P.
TI  - Test theory: a unified treatment 
SN  - 0805830758 :
U1  - 150.287 
PY  - 1999///
CY  - Mahwah
PB  - Lawrence Erlbaum Associates Publishers
KW  - Psychology
KW  - Statistical methods
KW  - Psychometrics
KW  - Social sciences
N1  - Includes index
ER  -