TY  - BOOK
AU  - Hoxby,Caroline M.
TI  - The effects of class size and composition on student achievement : new evidence from natural population variation
AV  - LB3013.2 H692E
PY  - 1998///
CY  - Cambridge, Mass.
PB  - National Bureau of Economic Research
KW  - CLASS SIZE
KW  - CONNECTICUT
KW  - MATHEMATICAL MODELS
KW  - SCHOOL ENROLLMENT
KW  - ACADEMIC ACHIEVENENT
KW  - ECONOMICS
KW  - RESEARCH
ER  -