To know how schools are performing, students in the same grade and subject need to take the same test, writes Show-Me Institute's Cory Koedel.

Two states are making moves that could upend the two-decade-old, No Child Left Behind-era model of once-a-year, standardized state exams to show whether students are meeting standards. In its place, ...

Though test scores in La Jolla public schools remain well above averages in the San Diego Unified School District, they are less so as students make the transition from elementary to middle and high ...