Experimental and quasi-experimental designs for generalized causal inference

Bibliografiske detaljer
Hovedforfatter:	Shadish, William R.
Andre forfattere:	Cook, Thomas D., Campbell, Donald Thomas 1916-
Format:	Bog
Sprog:	English
Udgivet:	Boston Houghton Mifflin c2002
Fag:	Causation > Experiments.