Two experimental studies of the Charlotte privately - funded scholarship program, here and here, reported
clear positive effects on student test scores but were limited to just a single year after random assignment.
They demonstrate that attending an oversubscribed charter middle or high school has
a clear positive effect on students» math and reading achievement, but also find that this «on - average» result obscures dramatic variation.
Not exact matches
Statewide programs in Florida, Louisiana, and Ohio, however, already have demonstrated
clear positive effects on the achievement of
students who remain in public schools, confirming Caroline Hoxby's claim (see «Rising Tide,» features, Winter 2001) that competition from choice generates «a rising tide that lifts all boats.»
Looking at demographic characteristics, credits completed, high school GPAs, and disciplinary incidents, the researchers found
clear evidence that the Promise reduced behavior problems for all
students, and had a dramatic
positive effect on the GPAs of African Americans.
For example,
positive effects on reading achievement have been associated with collaboration and community building (Briggs & Thomas, 1997); targeted professional development (Frazee, 1996); curriculum and assessment alignment (Stringfield, Millsap, & Herman, 1997);
clear and agreed - upon goals and objectives at the state and school levels (Rossi & Stringfield, 1997); high expectations for
students (Foertsch, 1998); early interventions and strategies for struggling readers (Lein, Johnson, & Ragland, 1997; Legters & McDill, 1994); common planning time for teachers (Miles & Darling - Hammond, 1997); and strong school leadership (George, Grissom, & Just, 1996; Shields, Knapp, & Wechsler, 1995).
In addition to the research cited above that provides a
clear rationale for what Barnett Berry terms «teacher - powered» schools, CTL sought local examples of teacher - directed leadership, professional learning and collaboration that are having a
positive effect not only
on teachers themselves, but
on student achievement and school culture.
Research is also
clear about the
positive effects on student achievement of teachers with stronger academic backgrounds.