The relevant population in forensic voice comparison: Effects of varying delimitations of social class and age
LRs based on different definitions of the relevant population computed. Relevant population varied according to socio-economic class and age. Strength of evidence affected substantially for individual comparisons. Systems based on narrow, appropriate relevant population produce the best validity. Broad definition of class and age preferable to narrow, inappropriate definition.
relevant population age socio-economic class likelihood ratio sociophonetics