As part of forensic linguistics practice, I must assess the relative age of multiple individuals based only voice. One crucial variable is VOT, which is known to decrease with age.
So, let's say hypothetically that I classify the individuals into two groups: one with a longer VOT than the other. However, I also want to do some statistical analysis to make the nuance of my results clearer by the jury.
What statistical techniques are optimal to these ends, in the case of (non)-normally distrubted data - how will normality be characterized? ANOVA, T, Kruskal-Wallis, etc.