239Forensic Training, Education, and Institutes
level of precision needed for the application. An important thing to remember
about sample size is that when we use larger and larger samples, our results are
no more accurate. e size of the sample has nothing to do with accuracy of
the result. What the size does change is the precision of your estimate. With
increased sample size there is less variation in results between multiple samples.
Slide 29:
With a 13-loci prole there are 26 pieces of information, and each of
these 26 alleles has an associated frequency. We then multiply the 26 allele
frequencies together, and any loci where there is a heterozygote we multiply
by 2, and the homozygous loci get a theta correction factor. To do this we ...