It's called creaming. Under the Federal Governments No Child Left Behind schools can look good with percentage of students meeting the standards if they get the poorer performing students to quit school.
A new study by researchers at Rice University and the University of Texas-Austin finds that Texas' public school accountability system, the model for the national No Child Left Behind Act (NCLB), directly contributes to lower graduation rates. Each year Texas public high schools lose at least 135,000 youth prior to graduation -- a disproportionate number of whom are African-American, Latino and English-as-a-second-language (ESL) students.
By analyzing data from more than 271,000 students, the study found that 60 percent of African-American students, 75 percent of Latino students and 80 percent of ESL students did not graduate within five years. The researchers found an overall graduation rate of only 33 percent.
"High-stakes, test-based accountability doesn't lead to school improvement or equitable educational possibilities," said Linda McSpadden McNeil, director of the Center for Education at Rice University. "It leads to avoidable losses of students. Inherently the system creates a dilemma for principals: comply or educate. Unfortunately we found that compliance means losing students."
The study shows as schools came under the accountability system, which uses student test scores to rate schools and reward or discipline principals, massive numbers of students left the school system. The exit of low-achieving students created the appearance of rising test scores and of a narrowing of the achievement gap between white and minority students, thus increasing the schools' ratings.
This whole NCLB policy fiasco is another reason that George W. Bush is a failed President. Under the guise of improving education by holding schools and teachers accountable, poorer students even have it worse.