Handwriting Examination: Moving from Art to Science

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Description

In this document, we present a method for validating the premises and methodology of forensic handwriting examination. This method is intuitively appealing because it relies on quantitative measurements currently used qualitatively by FDE's in making comparisons, and it is scientifically rigorous because it exploits the power of multivariate statistical analysis. This approach uses measures of both central tendency and variation to construct a profile for a given individual. (Central tendency and variation are important for characterizing an individual's writing and both are currently used by FDE's in comparative analyses). Once constructed, different profiles are then compared for individuality using cluster ... continued below

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48 p.

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Jarman, K.H.; Hanlen, R.C. & Manzolillo, P.A. April 12, 1999.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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Description

In this document, we present a method for validating the premises and methodology of forensic handwriting examination. This method is intuitively appealing because it relies on quantitative measurements currently used qualitatively by FDE's in making comparisons, and it is scientifically rigorous because it exploits the power of multivariate statistical analysis. This approach uses measures of both central tendency and variation to construct a profile for a given individual. (Central tendency and variation are important for characterizing an individual's writing and both are currently used by FDE's in comparative analyses). Once constructed, different profiles are then compared for individuality using cluster analysis; they are grouped so that profiles within a group cannot be differentiated from one another based on the measured characteristics, whereas profiles between groups can. The cluster analysis procedure used here exploits the power of multivariate hypothesis testing. The result is not only a profile grouping but also an indication of statistical significance of the groups generated.

Physical Description

48 p.

Notes

OSTI as DE00005703

Medium: P; Size: 48 pages

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  • Other Information: PBD: 12 Apr 1999

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  • Report No.: PNNL-12180
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/5703 | External Link
  • Office of Scientific & Technical Information Report Number: 5703
  • Archival Resource Key: ark:/67531/metadc697671

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Creation Date

  • April 12, 1999

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 12, 2017, 7:07 p.m.

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Jarman, K.H.; Hanlen, R.C. & Manzolillo, P.A. Handwriting Examination: Moving from Art to Science, report, April 12, 1999; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc697671/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.