By Carl Bialik
Moving the Needle
Global vaccination rates for children have held steady in recent years, but they vary widely among types of immunizations.
The State of Fourth Grade
Fourth-grade math scores rose in most states since 2003, but reading gains were rarer.
Most Valuable Players
Only five men have won the NBA’s MVP award four times or more. LeBron James, who turns 29 next month, might top the list by the time he’s done.