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A New-Dominant Hand: Can Forensic Document Examiners Correctly Associate the Dominant-Hand Writing to the Non-Dominant-Hand Writing of the Same Person? Cover

A New-Dominant Hand: Can Forensic Document Examiners Correctly Associate the Dominant-Hand Writing to the Non-Dominant-Hand Writing of the Same Person?

Open Access
|Dec 2018

Figures & Tables

Table 1.

Accuracy and Error Rates for FDEs.

FDECalls MadeAccuracy CountAccuracy %Error CountError %
Cursive72067593.75%456.25%
Handprinting72062887.22%9212.78%
Total1440130390.49%1379.51%
Table 2.

Accuracy and Error Rates for Laypeople.

LAYPEOPLECalls MadeAccuracy CountAccuracy %Error CountError %
Cursive43235081.02%8218.98%
Handprinting43232074.07%11225.93%
Total86467077.55%19422.45%
Table 3.

Comparison of Accuracy Rates for FDEs and Laypeople.

Accuracy %
FDE Cursive93.75%
LAYPEOPLE Cursive81.02%
FDE Handprinting87.22%
LAYPEOPLE Printing74.07%
FDE Combined90.49%
LAYPEOPLE Combined77.55%
Figure 1.

Comparison of Accuracy Rates for FDEs and Laypeople.

Table 4.

Comparison of Error Rates for FDEs and Laypeople.

Error %
FDE Cursive6.25%
LAYPEOPLE Cursive18.98%
FDE Handprinting12.78%
LAYPEOPLE Printing25.93%
FDE Combined9.51%
LAYPEOPLE Combined22.45%
Figure 2.

Comparison of Error Rates for FDEs and Laypeople.

Table 5.

Raw Scores for FDEs.

FDE Raw Scores
FDE #TotalsCursive ComparisonsPrinting Comparisons
Score out of 96% CorrectScore out of 48% CorrectScore out of 48% Correct
0018487.50%4389.58%4185.42%
0028992.71%4797.92%4287.50%
0039497.92%48100.00%4695.83%
0049194.79%4593.75%4695.83%
0059295.83%4797.92%4593.75%
0069295.83%48100.00%4491.67%
0078588.54%4695.83%3981.25%
0088588.54%4287.50%4389.58%
0098083.33%4389.58%3777.08%
0108285.42%4389.58%3981.25%
0117376.04%3777.08%3675.00%
0128992.71%4593.75%4491.67%
0139194.79%4797.92%4491.67%
0148487.50%4797.92%3777.08%
0159295.83%4797.92%4593.75%
Table 6.

Raw Scores for LPs.

Laypeople Raw Scores
Layperson #TotalsCursive ComparisonsPrinting Comparisons
Score out of 96% CorrectScore out of 48% CorrectScore out of 48% Correct
0018184.38%0014300138
0025961.46%0023100228
0036466.67%0033100333
0046264.58%0043400428
0057982.29%0054400535
0069194.79%0064600645
0077376.04%0073700736
0087780.21%0083900838
0098487.50%0094500939
DOI: https://doi.org/10.69525/jasqde.251 | Journal eISSN: 1524-7287
Language: English
Page range: 29 - 44
Published on: Dec 1, 2018
Published by: American Society of Questioned Document Examiners
In partnership with: Paradigm Publishing Services

© 2018 Brenda N. Lanners, published by American Society of Questioned Document Examiners
This work is licensed under the Creative Commons Attribution 4.0 License.