@article{Moffitt2004,
author = {Robert Moffitt},
title = {The role of randomized field trials in social science research: a perspective from evaluations of reforms of social welfare programs},
journal = {American Behavioural Scientist},
year = {2004},
month = {Jan},
volume = {XLVII},
number = {5},
pages = {506-540},
url = {},
}