The phrase
"than in traditional public schools" is a comparative phrase that indicates how something compares to or has an advantage over another thing.
Full definition
An analysis of 2011 - 12 MEAP results by the Michigan Association of Public School Academies concludes that black urban students perform better in charter
schools than in traditional public schools in both math and reading...
At charter schools, however, race matching appears unrelated to student discipline across all groups, suggesting that discipline dynamics may have been different in charters
than in traditional public schools during the period we studied.
Students with special needs in charter schools change schools less
often than those in traditional public schools: Five years after enrolling in kindergarten, about 65 percent of charter students with special needs are still in their original schools, while only 37 percent of traditional public school students with special needs are still in their original schools.
But in Pennsylvania, the share of African - American students attending segregated charter schools was
higher than in the traditional public schools that they'd come from, according to Erica Frankenberg, the coauthor of a 2015 study and an associate professor at Pennsylvania State University.
According to the Government Accountability Office (2012), the percentage of students with disabilities enrolled in charters is
lower than in traditional public schools (roughly 8 percent versus 11 percent), but the agency notes that the disparity may hinge on several factors, including parental preference and charter schools» capacity to meet the needs of students with severe disabilities.
While urban students overall do better in charter schools
than in traditional public schools — a conclusion found by rigorous studies that account for any potential differences in the students going in — the gap varies tremendously from place to place.