@article{ref1,
title="The optimized summed scored attributes method for the classification of U.S. Blacks and Whites: a validation study",
journal="Journal of forensic sciences",
year="2016",
author="Kenyhercz, Michael W. and Klales, Alexandra R. and Rainwater, Christopher W. and Fredette, Sara M.",
volume="62",
number="1",
pages="174-180",
abstract="Recently, Hefner and Ousley (2014) introduced the optimized summed scored attributes (OSSA) method that maximizes between-group differences in U.S. black and white populations by dichotomizing six cranial morphoscopic trait scores. This study tests OSSA using an independent skeletal sample (Hamann-Todd, n = 208) and positively identified forensic cases (Mercyhurst University, n = 28, and New York City Office of Chief Medical Examiner, n = 38). An evaluation of trait frequencies suggests shifting the heuristically selected sectioning point separating U.S. black and white populations from ≤ 3 to ≤ 4. We found a total correct classification of 73.0% (B = 50.9%, W = 89.2%) using the originally suggested sectioning point of ≤3, while the total correct classification increases to 79.2% (B = 80.2%, W = 78.5%) with a modified sectioning point of ≤4. With the increased total correct classification and reduced classification bias between ancestry groups, we suggest the modified sectioning point of ≤4 be used when assessing ancestry in forensic unknowns.<br><br>© 2016 American Academy of Forensic Sciences.<p /> <p>Language: en</p>",
language="en",
issn="0022-1198",
doi="10.1111/1556-4029.13243",
url="http://dx.doi.org/10.1111/1556-4029.13243"
}