What does the evidence likelihood ratio compare?

The evidence likelihood ratio specifically measures the strength of evidence by comparing two competing propositions. It assesses how likely the evidence would be if one hypothesis is true compared to how likely it would be if an alternative hypothesis is true.

This ratio provides a quantitative means to evaluate the probative value of evidence in forensic cases, allowing analysts to determine which proposition is more plausible based on the available evidence. For example, in a criminal case, one proposition might be that a suspect is guilty, while the alternative could be that the suspect is innocent. The likelihood ratio then clarifies how the evidence supports or contradicts these positions, offering critical insight during investigations and legal proceedings.

The other options refer to more generalized statistical concepts or methodologies that do not specifically capture the nuanced comparison of competing hypotheses that the likelihood ratio encapsulates.