Study: Even Affluent Schools Lag in Math

For years American students have lagged behind their international peers but new research also found that even students in affluent school districts are considered mediocre when compared globally.

The George W. Bush Policy Institute study compared math and reading scores from the country's 14,000 school districts with students in 25 industrialized countries, including Japan, France, Italy, Korea and the U.K.

Researchers focused on math scores because they say they are more accurate predictors of success.

The " global report card " found that larger school districts, such as Dallas Independent School District, ranked below average.

For example, DISD students scored in the 30th percentile in math, meaning those students would outperform 30 percent of their international peers.

Other schools:

• Fort Worth ISD scored in the 29th percentile.
• Garland scored in the 48th percentile.
• Frisco scored in the 68th percentile.
• Highland Park ISD scored in the 88th percentile.

American students, however, excelled in reading.