@inbook{701ca8c248704016a74e8ad6baf26922,
title = "Quasi-Experimental and correlational designs: Methods for the real world when random assignment isn{\textquoteright}t feasible",
author = "Mark, {Melvin M.} and Reichardt, {Charles S.}",
year = "2004",
month = jan,
day = "1",
doi = "10.4135/9781412976190.n12",
language = "English (US)",
isbn = "9780761925354",
pages = "265--286",
booktitle = "The SAGE Handbook of Methods in Social Psychology",
publisher = "SAGE Publications Inc.",
address = "United States",
}