TY  - RPRT
TI  - Item difficulty and discrimination as a function of stem completeness.
AU  - C Violato
PY  - 1991
DO  - 10.2466/pr0.1991.69.3.739
UR  - https://pubmed.ncbi.nlm.nih.gov/1784658/
ID  - 1784658
ER  -