This fall, health insurers in a few states will be seeing stars. Not the celestial kind, but stars that reflect their scores on quality measures designed to help consumers make better-informed decisions about what coverage to buy. A handful of states, among them Minnesota and California, are opting to do the ratings early, before the federal health law requires them to do so in 2016. They?re scrambling now to decide what to measure and how to translate that into something useful to the millions of individuals and small businesses expected to shop for coverage in the new marketplaces beginning in October.