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Aaron Ainsworth

@ajainsworth.bsky.social
192 followers 329 following 33 posts

Ed Policy PhD student at UCI studying K-12 educator labor markets and policy • Vanderbilt & UNLV alum • former Las Vegas teacher • 🏳️‍🌈 www.aaronjainsworth.com

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Reposted by Aaron Ainsworth
Tuan D. Nguyen, Ph.D. @edutuan.bsky.social · 01/10/2026
Gone for a while, but a few things to share: 1. Ending Teacher Shortages book shorturl.at/ghvOU 2. Educator Recruitment Retention & Effectiveness Center teacherworkforce.com 3. Nowcasting teacher turnover 4. Why Teachers Matter doc (in production) shorturl.at/b45E4
shorturl.at
Amazon.com
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CALDER Center @caldercenter.bsky.social · 23/09/2026
Do university students with stronger academic records become more effective, longer-lasting teachers? New CALDER paper links college application & transcript data in Washington to teacher workforce entry, effectiveness, and retention. 🔗 caldercenter.org/publications...
Does Better Academic Preparation Predict Teacher Workforce Outcomes? 
Dan Goldhaber, John Krieg, Roddy Theobald, Vivien Chen, Jennifer M. Dechaine, Amy Roth McDuffie, & David Slavit 
CALDER Working Paper No. 346-0926 
September 2026 

Abstract 
We link comprehensive student data on university applications and transcripts from three public universities in Washington to teacher workforce entry, effectiveness (measured by value added), and retention. We find that SAT scores are not strongly related to any of these outcomes, but college students with higher university GPAs are more likely to become teachers, and those who enter the workforce with higher GPAs are more effective as measured by math and English language arts (ELA) value-added. These findings are robust to sample selection adjustments and to checks for selection into different college courses, school districts, and out of the teacher workforce. The relationship between GPA and teacher effectiveness is driven largely by grades in math courses designed specifically for teachers. Performance in regular math courses does not predict effectiveness or retention. However, we find that teachers who take at least one advanced math course (400-level or higher) are more effective in both math and ELA than those who do not. Finally, teachers who expressed interest in education at the time of university application are more likely to remain in the workforce once they enter than those who did not. Together, these results suggest that information from college applications and transcripts carries meaningful signals about future teacher effectiveness and retention.
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Michael Hobbes @michaelhobbes.bsky.social · 21/09/2026
Finally watched this and can't recommend it highly enough. It's free on Youtube atm
youtu.be
Pride Official Trailer #1 (2014) HD
YouTube video by FilmIsNow Movies
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Andy de Barros @andydebarros.bsky.social · 16/09/2026
Most startling finding I've seen in a long time! 👇 edworkingpapers.com/ai26-1580
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Aaron Ainsworth @ajainsworth.bsky.social · 15/09/2026
I’m excited to share a new EdWorkingPaper with @andydebarros.bsky.social. Evaluations are an increasingly common way school systems globally are trying to help teachers improve, but is more always better? A 🧵 doi.org/10.26300/ms3...
doi.org
Evaluation Scores and Student Learning under Compulsory Teacher Re-Evaluation
We examine how lower-performing public school teachers respond to more frequent formative evaluations. A 2011 reform in Chile required teachers rated "basic" (the second-lowest category) to be re-eval...
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Michael Hobbes @michaelhobbes.bsky.social · 08/09/2026
“The United States now has the largest gap in reading performance between its lowest and highest-achieving students of any of the dozens of countries that participated in PISA.”
edweek.org
Reading Ability Craters on PISA International Exam, Both in the United States and Abroad
The U.S. outperformed most countries in reading and science, but the results show a global phenomenon of poorer readers.
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CALDER Center @caldercenter.bsky.social · 10/08/2026
New CALDER paper by @marylaski.com, Calen Clifton, & @cedr.bsky.social studies the impact of team teaching in AZ. Student achievement effects are mostly null overall, but middle school math improves. Teachers also see lower turnover & higher evaluation ratings. Read: caldercenter.org/publications...
Evidence on Team-Based Teaching Models in Arizona 
Mary Laski, Calen Clifton, & Dan Goldhaber 
CALDER Working Paper No. 343-0826 
August 2026 
Abstract: Strategic staffing models are scaling rapidly nationwide. We study the impacts of a team teaching model implemented in one large district in Arizona over several years. We exploit the staggered rollout over time in a difference-in-differences design to estimate effects on student test achievement. We find overall null impacts on student learning, but important heterogeneity by grade and subject. In particular, we find consistently positive effects on middle school math achievement across all specifications, but negative effects at the elementary level in some specifications. Across grades and subjects, teamed teachers also have significantly lower turnover rates and higher evaluation ratings, but the patterns of effects are not consistent with the achievement results. The student achievement findings are broadly consistent with the literature on teacher-level departmentalization and suggest that benefits to team teaching can emerge in contexts where teaming increases collaboration without disrupting established teacher-student relationships, such as in already-departmentalized middle school grades.
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Aaron Ainsworth @ajainsworth.bsky.social · 16/06/2026
Excited to see our study on four-day school weeks and teacher retention out at Education Finance & Policy! Using 18 years of data from Oregon, we find that switching to a four-day week actually increased teacher turnover by about 2 percentage points. direct.mit.edu/edfp/article... 1/4
direct.mit.edu
Less Is More? The Causal Effect of Four-Day School Weeks on Teacher Turnover
Abstract. The use of four-day school weeks (4dsw) in the United States has expanded rapidly over the past two decades. Previous work examines the impact of 4dsw on student outcomes, but less research ...
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Aaron Ainsworth @ajainsworth.bsky.social · 30/04/2026
Education Policy and IBCK crossover episode!
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Morgan Polikoff @mpolikoff.bsky.social · 23/04/2026
A lot of folks were approvingly sharing Kelsey Piper's post about the problems of educational research. Here's my take. // Ill-Informed Essays About Education Research are Weak and Sloppy. Why? edpolicyhub.substack.com/p/ill-inform...
edpolicyhub.substack.com
Ill-Informed Essays About Education Research are Weak and Sloppy. Why?
Morgan Polikoff
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Emily Penner @emilykpenner.bsky.social · 28/04/2026
Interested in some highlights from our latest paper about the effects of Ethnic Studies while it scales district-wide? Our friends at EdWorkingPapers have you covered. edworkingpapers.com/policy-pract...
edworkingpapers.com
Cultural Relevance at Scale: The Effects of an Ethnic Studies Expansion on Academic Outcomes
Ethnic Studies (ES) has emerged as a promising approach to address this challenge. By centering the histories, cultures, and lived experiences of communities of color, ES is designed to make learning ...
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Andrew Avitabile @andrewavit.bsky.social · 20/03/2026
🚨 Hey You! 🚨 Still at #AEFP tomorrow? Come check out my presentation at 11:45 AM in Vevey 2, where I’ll present some extremely hot off the press work on a statewide teacher compensation policy in Texas
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Aaron Ainsworth @ajainsworth.bsky.social · 19/03/2026
Cool new study about a foundational skills intervention in Zambia showing positive effects that persist into middle grades. Doubling intervention costs by providing teacher PD produced no additional gains. An RCT, DiD, multiple treatment arms!! So much great stuff to see here, congrats!
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Emily Penner @emilykpenner.bsky.social · 13/03/2026
Glad to see our work about special ed and gifted identification across the income distribution appear in this week's @chalkbeat.org
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Nick Ainsworth @nick-ainsworth.bsky.social · 27/02/2026
Excited to share a new EdWorkingPaper on the relationship between family income and disability ID. 🧵 TLDR: Low-income students are much more likely to receive SPED services while high-income students are more likely to get 504 plan accommodations. edworkingpapers.com/ai26-1374
edworkingpapers.com
School-Based Disability Identification Varies by Student Family Income
Currently, 18 percent of K-12 students in the United States receive additional supports through the identification of a disability. Socioeconomic status is viewed as central to understanding who gets ...
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David Houston @dmhouston.bsky.social · 25/02/2026
Stunning work: "Currently, 6.1 percent of K-12 students in the United States receive gifted education ... Under 4 percent of students in the lowest income percentile are identified as gifted, compared with 20 percent of those in the top income percentile." edworkingpapers.com/ai26-1375
edworkingpapers.com
Gifted Identification Across the Distribution of Family Income
Currently, 6.1 percent of K-12 students in the United States receive gifted education. Using education and IRS data that provide information on students and their family income, we show pronounced dif...
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Aaron Ainsworth @ajainsworth.bsky.social · 26/02/2026
Really fascinating work on a unique teacher pay reform!
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Matthew A Kraft @matthewakraft.com · 18/02/2026
🚨Thrilled to share our new @nber.org WP. Research and policy often assume teacher effectiveness is essentially fixed. We revisit this question by studying what happens when high-performing teachers are incentivized to transfer to struggling schools. 🧵 nber.org/papers/w34845
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Matt Barnum @mattbarnum.bsky.social · 18/02/2026
New– A great teacher might not stay great in schools with less supportive learning environments. This is an important wrinkle on the "teachers are the most important in-school factor" line. It's more like: teachers + context. www.chalkbeat.org/2026/02/17/t...
chalkbeat.org
Teaching as a team sport: What happens when a great teacher moves to a struggling school?
New research on a federal program found that when top teachers transferred to high-need schools, their performance dropped significantly. Teacher effectiveness may not be a fixed skill.
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Aaron Ainsworth @ajainsworth.bsky.social · 11/02/2026
I’m really glad to see that our paper is now out at Ed Researcher! We examine turnover among the half of school employees who are not teachers to understand how their turnover compares. Using Oregon data (2007-23) for all public school employees, there are 3 new patterns that we document: A 🧵
journals.sagepub.com
Revolving School Doors? A Longitudinal Examination of Teacher, Administrator, and Staff Contributions to School Churn - Emily K. Penner, Yujia Liu, Aaron J. Ainsworth, 2026
Non-teaching staff comprise over half of all school employees, and their turnover may be consequential for school operation, culture, and student success, yet w...
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The Tennessee Holler @thetnholler.bsky.social · 16/12/2025
We are failing our kids
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Andrew Penner @andrewpenner.bsky.social · 16/07/2025
Very excited for the latest paper from the international administrative data network I am a part of! Led by @aresherman.bsky.social we show that 75% of pay differences between immigrants and native-born workers arise because of sorting into different jobs, with 25% due to unequal pay within jobs.
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Lindsey Kaler @lindseykaler.bsky.social · 20/05/2025
New @caldercenter.bsky.social WP! A study from my dissertation, w/ @roddy-theobald.bsky.social, @natejones.bsky.social‬, & @lizbettini.bsky.social. We find staff turnover matters for SWDs. Ungated WP & one pager: • Working paper: tinyurl.com/j3rykkp9 • One-pager: tinyurl.com/bddtzxtp
Abstract of CALDER working paper, Impacts of Staff Turnover on Test Scores for Students with and without Disabilities."
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Jill Barshay @jillbarshay.bsky.social · 28/04/2025
Successful pushback to DOGE cuts. Funding had run out for the Education Dept's online library ERIC last week, but funding has restarted. But only half as much. hechingerreport.org/proof-points...
hechingerreport.org
Education Department restarts online library ERIC
New contract slashes budget in half, but library will continue to operate
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Prof Dynarski @dynarski.bsky.social · 15/03/2025
If you have research dependent on these data here is my suggestion 1/N Big picture: Create a dataset of cell means (cells must be big enough to pass disclosure) - load these cell means into many, many tables & put through review -These cell means can then be used in OLS - which runs on means
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Adam Bonica @adambonica.bsky.social · 09/03/2025
DHS just detained a Columbia student who helped lead campus protests—a direct attack on campus activism. This timeline shows why authoritarians fear student protests: they're often the first and most effective catalysts for pro-democracy movements.
Infographic titled ‘Student-Led Pro-Democracy Protests and Their Impact Worldwide (1955–2025).’ A vertical timeline from 1955 to 2025 lists major student-led protests (e.g., Hungary 1956, Prague Spring 1968, Tiananmen Square 1989, Arab Spring 2010s). Each protest is color-coded by outcome: Successful Transition, Partial Gains, or No Immediate Gains. The visual underscores how student activism has shaped political and social landscapes over seven decades.
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Jill Barshay @jillbarshay.bsky.social · 05/03/2025
I was just informed that the Department of Education has taken down all its Civil Rights data. If you need it, alternative sites are now hosting it for the public. See links in this thread. ocrdata.ed.gov/notfound
ocrdata.ed.gov
Civil Rights Data | U.S. Department of Education
Understand trends in student opportunity, security, and diversity.
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Adam Bonica @adambonica.bsky.social · 04/03/2025
8/ The billionaire paradox has become America's tragedy: a small elite willing to sacrifice both democratic principles and economic growth on the altar of their tax privileges.
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Andrew Avitabile @andrewavit.bsky.social · 11/02/2025
It's come on and offline since, but.... download what you need ASAP
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Aaron Sojourner @aaronsojourner.org · 11/02/2025
GovWayBack. govwayback.com
GovWayback
Access historical versions of U.S. government websites from before January 20, 2025 with a simple URL change.

How it works: Take any .gov URL and add wayback.com right after .gov, and you'll be redirected to the Wayback Machine's archived version of the page.
Examples:

Simple domain:
www.epa.gov → www.epa.govwayback.com

Specific page:
www.whitehouse.gov/administration → www.whitehouse.govwayback.com/administration

Complex URL:
www.congress.gov/bill/118th-congress/house-bill/2 → www.congress.govwayback.com/bill/118th-congress/house-bill/2
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Aaron Sojourner @aaronsojourner.org · 10/02/2025
How much student learning do you think a school district could gain just by better assigning its teachers to schools? Consider a quite politically-feasible change. Do not let district make any assigned teacher worse off, nor change teacher hiring, nor compensation, nor the students. New evidence!
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Cara Jackson @carajackson.bsky.social · 23/01/2025
Students who applied to the METCO program and were admitted were: 13 pct pts more likely to graduate from high school on time 22 pct pts more likely to enroll in a 4-year college 16 pct pts more likely to graduate from a 4-year college ...compared to peers who applied but not offered a spot
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Roddy Theobald @roddy-theobald.bsky.social · 16/12/2024
Publication alert! Our @caldercenter.bsky.social work on the paraeducator workforce in WA, joint with @lindseykaler.bsky.social, @lizbettini.bsky.social, & @natejones.bsky.social, is now published in EC! Journal link: tinyurl.com/4rp8e5sb Ungated: tinyurl.com/4dwnzy3y 1 pager: tinyurl.com/y7w9jufy
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Roddy Theobald @roddy-theobald.bsky.social · 21/11/2024
We document substantial recovery from the drops in identification rates associated with the onset of the pandemic, also documented in OR by @nick-ainsworth.bsky.social and covered in reporting by @evieblad.bsky.social and @bethhawkins.bsky.social.
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Aaron Ainsworth @ajainsworth.bsky.social · 20/11/2024
If you’re at APPAM join us tomorrow to hear about how the 4DSW has fared in achieving one of its more recent aims: retaining teachers. Andrew, Emily, Kate and I will try to make sense of findings across Arkansas, Colorado, and Oregon.
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Andrew Camp @andrewmcamp.com · 20/11/2024
What can we do to better recruit and retain teachers? There's been a lot of attention on the teaching profession over the past few years, and specifically on what changes can be made to keep teachers in the classroom. An increasingly popular policy sounds simple enough: a four-day school week.
Quote from a superintendent in a four-day school week district: "Our thinking was, well what's best for kids? If we're losing good teachers, what can we do to keep good teachers? We can't pay $10,000 a year more."
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Melissa (Mimi) Arnold Lyon @mimiarnoldlyon.bsky.social · 18/11/2024
📣New at the Brookings Brown Center Chalkboard, I summarize big takeaways from my research on 772 teacher strikes over the past 16 years 📣 www.brookings.edu/articles/the... I have 3 big papers/working papers on strikes (all linked in the post)
brookings.edu
The resurgence and impacts of teacher strikes
Melissa Arnold Lyon examines the causes, effects, and political impacts of teacher strikes in the United States since 2007.
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Lucy Sorensen @lucy-sorensen.bsky.social · 18/11/2024
First new working paper thread on Blue Sky! 🧵 In this study, Moontae Hwang, Marzuka Ahmad Radia, and I look at the impacts of school building HVAC system conditions on student outcomes in New York State . . . edworkingpapers.com/ai24-1093
A screenshot of the title and abstract of the paper, also available on the link
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