Study: On average, charter schools do no better than public schools
But the study also found more nuanced evidence that the most effective charter schools are those serving lower-income students, especially in urban areas.
More evidence is in that charter schools – at least on average – do no better than regular public schools.Skip to next paragraph
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Middle-school students who were selected by lottery to attend charter schools performed no better than their peers who lost out in the lottery and attended nearby public schools, according to a study funded by the federal government and released Tuesday.
This is the first large-scale randomized study to be conducted across multiple states, and it lends some fuel to those who say there is little evidence to back the drive for more charters.
But the study also found more nuanced evidence that the charters that work best are those serving lower-income students, especially in urban areas.
“When you take a look at our findings and then look back at previous studies, they start to follow a pattern,” says Philip Gleason, the study’s director and a senior fellow at Mathematica Policy Research, which produced the study. “Studies that have focused on the largest set of schools find either no or negative effects, but schools in larger urban areas, serving the most disadvantaged students, do have an effect.”
Charters have been a hot topic lately, with a big push from the Obama administration for states to expand the number of charter schools and to replicate those that seem to have the most effect. Charters are publicly funded but largely autonomous, and they are frequently criticized by teachers unions, in particular, since they are not bound by union agreements.
The push to create more charters has been questioned in light of research showing no advantage – or even a negative effect – for students attending charter schools. Such research includes a much-publicized study a year ago from the Center for Research on Education Outcomes (CREDO). Several other, narrower studies – including one on New York City charters and a study that came out last week on charter schools operated by the Knowledge Is Power Program (KIPP) – have showed positive outcomes for charters.
The result, say education researchers, is a heated debate but also a growing consensus that charters, like regular public schools, vary widely in their quality and that they are at their best when serving a more disadvantaged population.