Sentences with phrase «different subsets of students»

Moreover, schools vary substantially in the backgrounds of the students they serve, and conventional statistical methods tend to break down when we compare teachers serving very different subsets of students.

While policymakers may debate the utility of such comparisons, such comparisons are better supported by the available data than are comparisons between teachers who work with very different subsets of students and under different conditions.

Not exact matches

RAND II, by contrast, ignored student background, placed more weight on a different subset of test results (including the 1998 results, which were not included in RAND I), used somewhat different approaches, and concluded that there was nothing special about performance in Texas.

(This pertained to the subset of principals for whom it was possible to produce a credible measure of their contributions to student achievement growth, because we could observe different principals in the same school in different years.)