TY  - RPRT
TI  - Using cluster random assignment to measure program impacts. Statistical implications for the evaluation of education programs.
AU  - H S Bloom
AU  - J M Bos
AU  - S W Lee
PY  - 1999
DO  - 10.1177/0193841x9902300405
UR  - https://pubmed.ncbi.nlm.nih.gov/10558395/
ID  - 10558395
ER  -