Anongnath Soison. Comparative study of habitual with left and right handwritings of the same person. Master's Degree(Forensic Science). Mahidol University. : Mahidol University, 2007.
Comparative study of habitual with left and right handwritings of the same person
Abstract:
Handwriting document examination is one of the important knowledge in
forensic science. Forensic Handwriting features examination is feature comparison
between question and known documents. One method that suspects use to change
their handwriting habitual is to disguise by unaccustomed handwriting. By researcher
observation, there was stability in some feature.
In this study, researcher collected accustomed and unaccustomed handwritings
from the elementary school teachers in Bangkok. The examined features were slant,
size of wide letter, size of narrow letter, size of normal letter, space, alignment and
height. These features were measured by video microscope. The data was analyzed by
two independent t-test and the percentage of each feature similarity was computed.
The result was shown that 75% of the subjects have similarity in narrow-size letter.