From the Glossary:
S.I.L.V.E.R. (Selectively Integrated Legislator Variance Evaluation Resource) - The acronym is basically gibberish; I shoehorned a bunch of words that sounded like they were related to the metric into an acronym I had already decided on. It was either SILVER or KUCINICH, and the other one would have been more time consuming to do.
SILVER combines a legislator's PVI and DW-Nominate score's into a single metric. It is useful for determining how partisan a legislator is in the context of their district or state. On the Charts page is a link to the current SILVER ranking for the state's delegation.
