{"id":322652,"date":"2026-05-19T10:22:08","date_gmt":"2026-05-19T10:22:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-ca\/322652\/"},"modified":"2026-05-19T10:22:08","modified_gmt":"2026-05-19T10:22:08","slug":"los-angeles-unusual-experiment-can-better-information-about-schools-help-parents-choose","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-ca\/322652\/","title":{"rendered":"Los Angeles\u2019 unusual experiment: Can better information about schools help parents choose?"},"content":{"rendered":"<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Chalkbeat Ideas is a section featuring reported columns on the big ideas and debates shaping American schools. <a href=\"https:\/\/www.chalkbeat.org\/newsletters\/ideas\/\" target=\"_self\" rel=\"nofollow noopener\" title=\"https:\/\/www.chalkbeat.org\/newsletters\/ideas\/\">Sign up for the Ideas newsletter<\/a> to follow our work.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">In the fall of 2019, thousands of parents in Los Angeles received letters in the mail designed to help them choose a high school for their eighth graders. Many of these letters included novel data on how effective different high schools were at helping students learn. <\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">What the families probably didn\u2019t realize is that they were part of an <a href=\"https:\/\/www.cqcampos.com\/assets\/pdf\/zoc_experiment.pdf\" rel=\"nofollow noopener\" target=\"_blank\">unusual experiment<\/a> designed by University of Chicago economist Chris Campos, in partnership with the Los Angeles school system. Campos was looking to answer a <a href=\"https:\/\/www.chalkbeat.org\/2019\/7\/9\/21121014\/can-growth-data-push-parents-to-more-integrated-schools-a-new-study-says-maybe\/\" rel=\"nofollow noopener\" target=\"_blank\">long-discussed question<\/a>: Can better information help families make better decisions about where to send their children to school? <\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">At a moment when school choice is expanding, this is a crucial issue across the country.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Campos, who had previously <a href=\"https:\/\/www.cqcampos.com\/assets\/pdf\/zoc.pdf\" rel=\"nofollow noopener\" target=\"_blank\">studied<\/a> school choice in Los Angeles, spent months working on how to communicate information about school performance. Many parents may assume that schools with the highest overall test scores are the ones where students make the most progress \u2014 but this <a href=\"https:\/\/www.chalkbeat.org\/2022\/1\/24\/22899133\/great-schools-ratings-bias-economists-research\/\" rel=\"nofollow noopener\" target=\"_blank\">often isn\u2019t true<\/a>. <\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Campos calculated measures of student learning himself, using a complex statistical model, while also conducting focus groups with parents on how to explain these numbers clearly. Such figures are often unavailable or hard to make sense of. Campos also designed <a href=\"https:\/\/www.youtube.com\/watch?v=AupdiA-Zkew\" rel=\"nofollow noopener\" target=\"_blank\">a video<\/a>, disseminated to families, describing the difference between student growth and the incoming test scores of schools\u2019 student bodies. <\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">The letter-sending experiment was remarkable. Such an undertaking is rare, especially at a large scale in a large school system. Yet it turned out the letters on their own didn\u2019t make much of a difference. Parents and students selected schools as they always did, seemingly unmoved by this new information.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">But Campos was also testing out an additional idea. What would happen if large numbers of families at a single school got letters with information on student growth? Campos\u2019 theory was that choosing a school is fundamentally a social process, both for students and their parents. <\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">The data bore this out. When a middle school was saturated with informational letters, more students tended to choose high schools with higher growth scores. That was even the case for families that did not get their own letter. In other words, what mattered more than individual information was a community-level shift in thinking. \u201cThere seems to be a tipping point,\u201d Campos says.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">He continued to track these students as they moved through high school. Those from middle schools where growth information was widely shared were more likely to enroll in college and to report more supportive high school environments. Campos\u2019 theory for why is simple: They benefitted from choosing better high schools based on better information.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">The high school choice system in Los Angeles is not a zero sum game since many schools are not filled to capacity. When one student chooses a school, that doesn\u2019t necessarily mean another is bumped out of it. The letters seemed to have led to a modest migration toward more successful schools. <\/p>\n<p>Get more like this delivered to your inbox.<\/p>\n<p>Hear from key voices in education and read expert analysis of the big ideas shaping American schools. Sign up now to get the Chalkbeat Ideas newsletter sent to you for free.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Campos is hopeful that if families prioritize growth measures, that will pressure struggling schools to improve. \u201cThey\u2019re going to have an even stronger incentive to perform better on these metrics,\u201d he says.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">The findings offer two important, albeit still-tentative insights. First, families do seem to value data on student growth, but they often don\u2019t have access to it. Second, to change parents\u2019 thinking, information needs to be widely shared across a broad network of connected families, not just a handful of individuals.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Campos\u2019 results are intriguing but limited. They should be taken as provisional until they are replicated by other researchers in different settings. Successful pilot experiments like this sometimes <a href=\"https:\/\/www.chalkbeat.org\/2019\/5\/31\/21121043\/the-college-board-tried-a-simple-cheap-research-backed-way-to-push-low-income-kids-into-better-colle\/\" rel=\"nofollow noopener\" target=\"_blank\">don\u2019t work<\/a> when brought to a larger scale. The study also comes in a context in which the vast majority of students are lower-income. Moving the preferences of advantaged families <a href=\"https:\/\/www.chalkbeat.org\/2019\/12\/5\/21121858\/looking-for-a-home-you-ve-seen-greatschools-ratings-here-s-how-they-nudge-families-toward-schools-wi\/\" rel=\"nofollow noopener\" target=\"_blank\">may be much harder<\/a>.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Campos\u2019 <a href=\"https:\/\/www.nber.org\/papers\/w33010\" rel=\"nofollow noopener\" target=\"_blank\">paper<\/a> is currently going through the academic peer review process. He is still working with officials in Los Angeles to study and improve its choice system. Now, though, all parents are sent letters he\u2019s designed providing information on student growth.<\/p>\n<p class=\"default__StyledText-sc-1px4eze-0 egVxCn body-paragraph\">Matt Barnum is Chalkbeat\u2019s ideas editor. Reach him at <a href=\"https:\/\/www.chalkbeat.org\/2026\/05\/19\/los-angeles-school-choice-experiment-on-parent-information-and-student-growth\/mailto:mbarnum@chalkbeat.org\" target=\"_self\" rel=\"nofollow noopener\" title=\"https:\/\/www.chalkbeat.org\/2026\/05\/19\/los-angeles-school-choice-experiment-on-parent-information-and-student-growth\/mailto:mbarnum@chalkbeat.org\">mbarnum@chalkbeat.org<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"Chalkbeat Ideas is a section featuring reported columns on the big ideas and debates shaping American schools. 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