Handwriting Examination: Moving from Art to Science
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab., Richland, WA (US)
- Sponsoring Org.:
- US Department of Energy (US)
- OSTI Identifier:
- 5703
- Report Number(s):
- PNNL-12180
R&D Project: 28218; TRN: AH200115%%101
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 12 Apr 1999
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; CRIME DETECTION; DOCUMENT TYPES; MEASURING METHODS; VALIDATION; MULTIVARIATE ANALYSIS
Citation Formats
Jarman, K.H., Hanlen, R.C., and Manzolillo, P.A. Handwriting Examination: Moving from Art to Science. United States: N. p., 1999.
Web. doi:10.2172/5703.
Jarman, K.H., Hanlen, R.C., & Manzolillo, P.A. Handwriting Examination: Moving from Art to Science. United States. doi:10.2172/5703.
Jarman, K.H., Hanlen, R.C., and Manzolillo, P.A. Mon .
"Handwriting Examination: Moving from Art to Science". United States.
doi:10.2172/5703. https://www.osti.gov/servlets/purl/5703.
@article{osti_5703,
title = {Handwriting Examination: Moving from Art to Science},
author = {Jarman, K.H. and Hanlen, R.C. and Manzolillo, P.A.},
abstractNote = {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.},
doi = {10.2172/5703},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 12 00:00:00 EDT 1999},
month = {Mon Apr 12 00:00:00 EDT 1999}
}