The No-Spin Evidence Review
We summarize recent program evaluations and explain what the evidence really shows. More >
Latest No-Spin Evidence Report
AERA Open (February 2026) published findings of a high-quality RCT of full-day (as compared to half-day) pre-K among primarily low-income, Hispanic children. The paper reports that full-day pre-K reduced students’ English language learner (ELL) designations in grades K-3 but doesn’t note an important caveat: ELL was not prespecified as a primary study outcome, so these findings are only suggestive. Meanwhile, the study’s primary outcomes (e.g., 3rd grade math and reading scores) have not yet been reported, preventing reliable conclusions about program effectiveness.
What We Do
We provide plain-language, no-spin summaries of recent studies on “what works” in social spending. We also highlight a common problem in study reporting: Study abstracts often portray programs as effective when the study’s results don’t support such claims.
We focus on abstracts because of their central role in research communication. Many readers rely on abstracts for a study's main take-aways - due to time constraints or paywalls on full-report access - so their exaggerated claims can lead to programs being mislabeled as “evidence based” and expanded despite weak or null findings.
Each No-Spin report assigns a rating – “accurately reported,” “somewhat accurately reported,” or “not accurately reported” – based on how well the abstract reflects the study’s primary findings and notes any important limitations that could affect study validity. We explain the basis for each rating and, where needed, suggest revisions to make the abstract more accurate.
We mainly report on randomized controlled trials (RCTs) because, when feasible and well-conducted, they're considered the strongest method of evaluating program effectiveness.
Learn more about our review process.
