The marginal cost of choosing one textbook over another is generally close to zero (because all textbooks cost about the same amount [xiv]-RRB-, and several recent studies have documented meaningfully
large differences in student outcomes.
Not exact matches
The
difference between
student outcomes for online and face - to - face classes... was
larger in those studies contrasting conditions that blended elements of online and face - to - face instruction with conditions taught entirely face - to - face.
«On the other hand,
large scale gains
in Chicago and suburban Chicagoland, and more isolated gains
in individual districts across the State, offer good evidence that school effectiveness is making a
difference and that demographics are not the only important influence on
student learning
outcomes.»