TY  - RPRT
TI  - Expanding an existing multiple choice test with a mixed format test: simulation study on sample size and item recovery in concurrent calibration.
AU  - Insu Paek
AU  - Michael J Young
PY  - 2006
UR  - https://pubmed.ncbi.nlm.nih.gov/17068379/
ID  - 17068379
ER  -