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caldercenter.bsky.social
CALDER Center
@caldercenter.bsky.social
A project of the American Institutes for Research (@airinforms.bsky.social) and university scholars, committed to analysis of data that informs education policy. Visit us at www.caldercenter.org.
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📢 Register for the 2026 CALDER Conference!

Join us on Monday, March 2 in Arlington, VA for a one-day conference featuring research from CALDER experts & discussion between researchers, policymakers & practitioners.

Register ➡️ caldercenter.org/events/17th-...
@cedr.bsky.social
📰 CALDER's Fall/Winter 2025-26 Newsletter is now out! Click below to read about our latest work and to register for the upcoming CALDER Conference.

👉 icont.ac/51dGH
February 6, 2026 at 8:32 PM
We're at a crossroads—what's next for education policy and research?

Join us at #CALDER2026 on March 2 for a roundtable discussion with @carajackson.bsky.social, Nat Malkus (AEI), Amber Northern (U.S. Department of Education), and @cedr.bsky.social.

📝Register now: caldercenter.org/events/17th-...
February 4, 2026 at 8:04 PM
What factors determine who becomes a teacher? Join us at the 2026 CALDER Conference on March 2 to dig into teacher preparation and hiring pipelines with John Krieg (WWU), @brbackes.bsky.social, @cedr.bsky.social, and Sara DeLano (Dallas College).

📝 Register now: caldercenter.org/events/17th-...
February 2, 2026 at 6:31 PM
What makes teachers stay? Join us at the 2026 CALDER Conference on March 2 to dig into teacher retention with @andrewmcamp.com, @gzamarro.bsky.social, @roddy-theobald.bsky.social, and Mark Olofson.

📝Register now: caldercenter.org/events/17th-...
January 30, 2026 at 5:38 PM
How do daily realities, leadership, and labor actions shape teacher working conditions? Join us at #CALDER2026 on 3/2 to dig in with @elizabeth-steiner.bsky.social, Cory Koedel,
@mimiarnoldlyon.bsky.social, and @marlau-k.bsky.social.

📝Register: caldercenter.org/events/17th-...
January 28, 2026 at 6:11 PM
📢 Register for the 2026 CALDER Conference!

Join us on Monday, March 2 in Arlington, VA for a one-day conference featuring research from CALDER experts & discussion between researchers, policymakers & practitioners.

Register ➡️ caldercenter.org/events/17th-...
@cedr.bsky.social
January 26, 2026 at 7:45 PM
📢 Registration for #CALDER2026 is now open!

Join us on Monday, March 2 in Arlington, VA for a one-day conference featuring research from CALDER experts & discussion between researchers, policymakers & practitioners.

Register ➡️ caldercenter.org/events/17th-...
@cedr.bsky.social
January 22, 2026 at 3:00 PM
Teachers' student teaching placements influence their development—but what do we know about the impact on student learning?

New CALDER paper estimates the relationship between teachers' preservice school climate and diversity and the later outcomes of their students. 👇
New @caldercenter.bsky.social working paper w/ @brbackes.bsky.social, @jecowan.bsky.social, & @cedr.bsky.social! We use MA data to explore the implications of the climate and diversity of students teachers' placement schools for outcomes of students of color. Paper & abstract ⬇️

tinyurl.com/4sxhtss8
January 20, 2026 at 6:52 PM
As more elementary schools embrace departmentalization, what does it mean for student learning?

New @hechingerreport.org article highlights CALDER study by @brbackes.bsky.social, James Cowan, & @cedr.bsky.social on the effects of departmentalization in MA. 👇

hechingerreport.org/the-schools-...
The schools where even young children change classes  - The Hechinger Report
BATON ROUGE, La. — About two dozen second graders sat on the carpet at the front of Jacquelyn Anthony’s classroom, reviewing how to make tens. “Two needs eight!” the students yelled out together. “Six...
hechingerreport.org
January 13, 2026 at 9:50 PM
Starting in 5 minutes! Click below to tune in 👇
January 13, 2026 at 5:55 PM
Reposted by CALDER Center
Jan 13, 1pm ET: AIR’s & @caldercenter.bsky.social Dan Goldhaber (@cedr.bsky.social) joins U.S. Chamber of Commerce Foundation for updated insights on federal K–12 policy and why accountability matters.

Background report: https://bit.ly/3LEiW8i

Livestream: https://bit.ly/4qdNeOe
Data and Assessments in K-12 Education
The U.S. Chamber of Commerce Foundation believes in the power of data, assessments, and accountability in ensuring all kids have access to a high-quality education.
www.uschamberfoundation.org
January 9, 2026 at 8:52 PM
Reposted by CALDER Center
Great to see the @caldercenter.bsky.social work on summer school (positive effects in math) featured by the Fordham Institute!

fordhaminstitute.org/national/com...
Summer school as an effective post-pandemic academic intervention
Public schools in the United States have struggled to boost student achievement in math and reading following the Covid-19 pandemic. Funding from the Elementary and Secondary School Emergency Relief F...
fordhaminstitute.org
January 9, 2026 at 2:59 PM
Reposted by CALDER Center
@sparccenter.bsky.social research shows why #SpecialEd teachers leave: lack of support. PA’s Attract‑Prepare‑Retain initiative is fixing that with targeted mentoring and training (and early results from @caldercenter.bsky.social). More w/ AIR's Allison Gilmour in @edweek.org: https://bit.ly/3MYcQAa
Inside One State's Bold Plan to Keep Special Education Teachers
Pennsylvania's training and mentoring program works to retain teachers serving students with disabilities.
www.edweek.org
January 5, 2026 at 5:50 PM
We know that public schools saw student engagement drop after COVID. But what about charters? New CALDER paper finds that despite greater flexibility, charters experienced similar drops in engagement on average, with considerable state variation.

Read 👉 caldercenter.org/publications...
December 15, 2025 at 6:36 PM
Reposted by CALDER Center
This bite-sized brief summarizes a lot of research on how summer school contributes to academic achievement (COVID recovery programs), see this piece. But want something even more succinct, see 👇
Summer school was a go‑to recovery strategy for districts after the pandemic—but was it effective? New brief from @nwea.bsky.social & CALDER explores the effects of summer school on student achievement & how its scale & impact compared to other interventions.

Read👉 caldercenter.org/publications...
December 6, 2025 at 11:16 PM
Summer school was a go‑to recovery strategy for districts after the pandemic—but was it effective? New brief from @nwea.bsky.social & CALDER explores the effects of summer school on student achievement & how its scale & impact compared to other interventions.

Read👉 caldercenter.org/publications...
December 5, 2025 at 4:22 PM
Reposted by CALDER Center
Really excited to have this piece out on the Brown Center Chalkboard blog with @lmasonwms.bsky.social, @afgilmour.bsky.social, & @lizbettini.bsky.social on the importance of targeted solutions to special education teacher staffing challenges. See below!
"As we have demonstrated, different states face different #SpecialEducation teacher turnover problems. This suggests that the most promising solutions might vary across states."

Read more about our recent findings in our article with @brookings.edu: www.brookings.edu/articles/sta...
States face different special education staffing challenges that require targeted responses | Brookings
Special education teacher turnover varies by state, calling for targeted, locally informed policy solutions.
www.brookings.edu
November 12, 2025 at 5:39 PM
Heading to Seattle for #2025APPAM this week? Be sure to check out presentations from CALDER experts @roddy-theobald.bsky.social, @brbackes.bsky.social, & @cedr.bsky.social.

Click here to learn more about the conference: www.appam.org/conference-e...
November 11, 2025 at 5:37 PM
How do early achievement gaps impact students' academic mobility? New CALDER paper uses WA data to track student test and non-test outcomes from 3rd grade to high school, finding that students who begin behind tend to stay behind.

Read here👉 caldercenter.org/publications...
@cedr.bsky.social
November 10, 2025 at 7:17 PM
Heading to Seattle for #2025APPAM next week? Be sure to check out presentations from CALDER experts @roddy-theobald.bsky.social, @brbackes.bsky.social, & @cedr.bsky.social. Click here to learn more about the conference: www.appam.org/conference-e...
November 6, 2025 at 3:44 PM
Despite widespread concerns about teacher shortages, evidence on the supply of teacher applicants is limited. New CALDER research uses job posting & application data from school districts & charter organizations to explore the teacher application landscape.
Read 👉 bit.ly/4oHMfEV
October 27, 2025 at 4:16 PM
Five years after the onset of COVID-19, what have we learned about how schools adapted?

Today @ 2 ET: Join @bellwetherorg.bsky.social & CALDER to explore what we learned from pandemic-era research & how these findings can guide education policy today.

Register ➡️ www.linkedin.com/posts/bellwe...
Lessons from COVID-19: How schools adapted and what we learned | Bellwether posted on the topic | LinkedIn
Five years after the onset of COVID-19, what have we learned about how schools adapted? The pandemic forced school leaders to make big decisions in real time, often without precedent. Join Bellwethe...
www.linkedin.com
October 20, 2025 at 12:15 PM
Join @bellwetherorg.bsky.social and CALDER on Monday 10/20 @ 2 PM ET for a LinkedIn Live conversation on what we learned from pandemic-era research and how these findings can guide education policy today.

Register ➡️ www.linkedin.com/posts/bellwe...
@cedr.bsky.social @airinforms.bsky.social
October 17, 2025 at 7:49 PM
Reposted by CALDER Center
Our @caldercenter.bsky.social research brief with @cedr.bsky.social and @ahkatz5.bsky.social on special education identification during the pandemic is now published in EEPA! We show that, after an initial dip, identification rates have now "caught up" with pre-pandemic norms: tinyurl.com/y4bea5y5
October 13, 2025 at 5:32 PM
Traditional state data systems often lack the info needed to answer fundamental questions about teacher supply & demand. Two new CALDER briefs explain how new approaches can help fill these gaps.

➡️ SUPPLY: bit.ly/3WchGex
➡️ DEMAND: bit.ly/4nJtLnA
October 6, 2025 at 5:34 PM