NCJ Number
246606
Journal
Journal of Forensic Sciences Volume: 59 Issue: 2 Dated: March 2014 Pages: 454-462
Date Published
March 2014
Length
9 pages
Annotation
By pooling independent study means (X), the T-Tables use the central limit theorem and law of large numbers to average out study-specific sampling bias and instrument errors and, in turn, triangulate upon human population means 'Ì.
Abstract
By pooling independent study means (X), the T-Tables use the central limit theorem and law of large numbers to average out study-specific sampling bias and instrument errors and, in turn, triangulate upon human population means 'Ì. Since their first publication in 2008, new data from >2660 adults have been collected c.30% of the original sample making a review of the T-Table's robustness timely. Updated grand means show that the new data have negligible impact on the previously published statistics: maximum change = 1.7 mm at gonion; and <_1 mm at 93% of all landmarks measured. This confirms the utility of the 2008 T-Table as a proxy to soft tissue depth population means and, together with updated sample sizes 8851 individuals at pogonion, earmarks the 2013 T-Table as the premier mean facial soft tissue depth standard for craniofacial identification casework. The utility of the T-Table, in comparison with shorths and 75-shormaxes, is also discussed. Abstract published by arrangement with Wiley.