Selection on observed and unobserved variables : assessing the effectiveness of catholic schools

Manylion Llyfryddiaeth
Prif Awdur:	Altonji, Joseph G.
Awduron Eraill:	Elder, Todd E., Taber, Christopher R.
Fformat:	Llyfr
Iaith:	Saesneg
Cyhoeddwyd:	Cambridge National Bureau of Economic Research 2000.
Cyfres:	NBER working paper series no.7831
Pynciau:	Catholic high schools > Evaluation > Statistical methods. > United States. Experimental design.