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dc.contributor.authorJohnson, Mac
dc.contributor.authorKallus, Nathan
dc.contributor.authorBertsimas, Dimitris J.
dc.date.accessioned2015-09-15T16:52:53Z
dc.date.available2015-09-15T16:52:53Z
dc.date.issued2015-04
dc.date.submitted2014-09
dc.identifier.issn0030-364X
dc.identifier.issn1526-5463
dc.identifier.urihttp://hdl.handle.net/1721.1/98509
dc.description.abstractRandom assignment, typically seen as the standard in controlled trials, aims to make experimental groups statistically equivalent before treatment. However, with a small sample, which is a practical reality in many disciplines, randomized groups are often too dissimilar to be useful. We propose an approach based on discrete linear optimization to create groups whose discrepancy in their means and variances is several orders of magnitude smaller than with randomization. We provide theoretical and computational evidence that groups created by optimization have exponentially lower discrepancy than those created by randomization and that this allows for more powerful statistical inference.en_US
dc.description.sponsorshipNational Science Foundation (U.S.). Graduate Research Fellowship (Grant 1122374)en_US
dc.language.isoen_US
dc.publisherInstitute for Operations Research and the Management Sciences (INFORMS)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1287/opre.2015.1361en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceMIT web domainen_US
dc.titleThe Power of Optimization Over Randomization in Designing Experiments Involving Small Samplesen_US
dc.typeArticleen_US
dc.identifier.citationBertsimas, Dimitris, Mac Johnson, and Nathan Kallus. “The Power of Optimization Over Randomization in Designing Experiments Involving Small Samples.” Operations Research 63, no. 4 (August 2015): 868–876.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Operations Research Centeren_US
dc.contributor.departmentSloan School of Managementen_US
dc.contributor.mitauthorBertsimas, Dimitris J.en_US
dc.contributor.mitauthorJohnson, Macen_US
dc.contributor.mitauthorKallus, Nathanen_US
dc.relation.journalOperations Researchen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsBertsimas, Dimitris; Johnson, Mac; Kallus, Nathanen_US
dc.identifier.orcidhttps://orcid.org/0000-0003-1672-0507
dc.identifier.orcidhttps://orcid.org/0000-0002-1985-1003
mit.licenseOPEN_ACCESS_POLICYen_US


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