TY  - RPRT
TI  - Randomize groups, not individuals: a strategy for improving early childhood programs.
AU  - Robert G St Pierre
AU  - Peter H Rossi
PY  - 2006
DO  - 10.1177/0193841x06291533
UR  - https://pubmed.ncbi.nlm.nih.gov/16966680/
ID  - 16966680
ER  -