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Evidence Wing · Exhibit VI

Sources

Every study, report and public document the investigation rests on — listed in full, so the work can be checked rather than trusted.

19 entries · Reference ledger

  1. 01

    TNTP (2024) — The Opportunity Makers

    TNTP. (2024). The Opportunity Makers: How a diverse group of public schools helps students catch up — and how far more can. TNTP.

  2. 02

    Nagel & Potter (2026)

    Nagel, D., & Potter, B. (2026). Developing Collaborative Expertise Teams: Transforming Schools Through Coherence, Belonging, and Consistency. Corwin Press.

  3. 03

    TNTP (2018) — The Opportunity Myth

    TNTP. (2018). The Opportunity Myth: What students can show us about how school is letting them down — and how to fix it. TNTP.

  4. 04

    Hattie (2023) — Visible Learning: The Sequel

    Hattie, J. (2023). Visible Learning: The Sequel — A synthesis of over 2,100 meta-analyses relating to achievement. Routledge.

  5. 05

    The Education Trust (2020)

    The Education Trust. (2020). The steep cost of missed opportunities: How the opportunity gap is failing our students.

  6. 06

    Moldt (2016) — APPR Review

    Moldt, S. R. (2016). Making the Grade: A ground-level analysis of New York State's teacher performance review under the APPR. BYU Education & Law Journal, 2016(2), 217–261.

  7. 07

    Education Scorecard (May 2026)

    Center for Education Policy Research (Harvard University), Educational Opportunity Project (Stanford University), & Dartmouth College. (May 2026). The Education Scorecard.

  8. 08

    Cavanagh (2003) — Stanford Study

    Cavanagh, S. (2003). Stanford University research study on the disconnect between high school coursework alignment and college standardized test expectations.

  9. 09

    Najarro (2024a) — Report Card vs. Benchmarks

    Najarro, I. (2024a). Discrepancies and inconsistencies in K-12 report card marks versus state benchmarks and Advanced Placement exam outcomes.

  10. 10

    Najarro (2024b) — Grades vs. SAT/ACT

    Najarro, I. (2024b). The growing structural mismatch between student classroom grades and scores on national standardized assessments (SAT/ACT).

  11. 11

    Nagel & Potter (2025) — Grading Visible Learners

    Nagel, D., & Potter, B. (2025). Grading Visible Learners: Learning With Fluidity Not Finality. Corwin Press.

  12. 12

    Hattie (2015) — Collaborative Expertise

    Hattie, J. (2015). What Works Best in Education: The Politics of Collaborative Expertise. London: Pearson (Open Ideas at Pearson).

  13. 13

    Sartain & Morris (2024) — Teacher Evaluation Satisfaction

    Sartain, L., & Morris, W. T. (2024). Are Teachers Satisfied With Their Evaluations? The Importance of Teaching Context and Trends Over Time. AERA Open, 10(1), 1–16. https://doi.org/10.1177/23328584231221539

  14. 14

    Office of Education Policy (2024) — PLC at Work in Arkansas

    Office of Education Policy. (2024, June). Effects of PLC at Work in Arkansas on student academic outcomes (Volume 21, Issue 1). University of Arkansas.

  15. 15

    Marken & Agrawal (2022) — Gallup

    Marken, S., & Agrawal, S. (2022, June 13). K-12 Workers Have Highest Burnout Rate in U.S. Gallup.

  16. 16

    Learning Policy Institute (2025) — Teacher Shortages

    Learning Policy Institute. (2025, July 16). An Overview of Teacher Shortages: 2025 [Fact Sheet].

  17. 17

    Grissom, Loeb, & Master (2013) — Principal Time Use

    Grissom, J. A., Loeb, S., & Master, B. (2013). Effective Instructional Time Use for School Leaders: Longitudinal Evidence from Observations of Principals. Educational Researcher, 42(8), 433-444.

  18. 18

    NCES (2022) — Principal Time Allocation

    National Center for Education Statistics. (2022). Average hours per week that public K–12 school principals spent on all school-related activities and percentage of time spent on various tasks: 2020–21. U.S. Department of Education.

  19. 19

    Hollister & Watkins (2018) — Too Many Projects

    Hollister, R., & Watkins, M. D. (2018, September–October). Too Many Projects: How to deal with initiative overload. Harvard Business Review.

A source missing from this ledger is an error, not an omission of convenience. If a claim in the Manifesto cannot be traced to an entry here or to documented field observation, it should not be there.