(Received 8 October 1998; accepted 21 December 1988)
| ||Format||Pages||Price|| |
|PDF (320K)||6||$25||  ADD TO CART|
Cite this document
A k value represents a type of summary statistic by means of which glass evidence may be interpreted. This statistic is defined as k = V/D, where the dispersion V = (nD − 1)/(nF − nC), and where D is the density. The k value is therefore the slope of a line through the 0,0 origin and a plot of dispersion versus density. Obtaining a k value facilitates the interpretation of commonality of source, since “within-item” variation in density and refractive index does not significantly alter the k value. “Between-item” variation, on the other hand, profoundly influences the k value, even if the density and one of the refractive indices are coincidentally similar.
Professor of forensic science, University of California, Berkeley, CA
Stock #: JFS12773J