https://www.cremieux.xyz/p/do-teachers-need-advanced-degrees
This article from Cremieux Recueil argues that advanced degrees and formal credentials for teachers have little to no measurable impact on student achievement. Leveraging several decades of administrative data and longitudinal studies, the author suggests that the obsession with credentials in education is a form of credentialism that prioritizes degrees over actual teaching efficacy.
Core Arguments against Credentialism
* Master’s Degrees: The author cites a seminal 2015 paper (Ladd and Sorensen) showing that Master's degrees do not make teachers more successful, with the only notable effect being a slight impact on student absenteeism.
* Licensure Tests: In some cases, teachers who passed specific licensure tests (like the CBEST or CSET) actually performed worse than those who hadn't, or showed null to negative effects on student gains.
* Subject Matching: Even when a teacher holds a degree specifically in the subject they teach, the boost to student test scores was found to be marginal (0.035 standard deviations).
* Experience: The impact of experience varies by grade level. While it may help slightly in elementary and middle school, some data (Harris and Sass) suggests it can actually have a negative or null effect in high school settings.
Key Studies Referenced
* Ladd & Sorensen (2015): North Carolina - Master's degrees have no effect on student achievement.
* Bhai & Horoi: North Carolina - Twin-control study found advanced degrees were not beneficial.
* Buddin & Zamarro: Los Angeles - Licensure tests (CBEST/CSET) appeared harmful or null.
* Rivkin, Hanushek & Kain: Texas - Teacher characteristics (degrees/experience) were largely irrelevant.
* Sancassani / Inoue & Tanaka: International - Subject-matched degrees provided a negligible boost.
The Socioeconomic Angle
The post includes a comment from a reader noting the financial trap of these requirements. In many states, teachers are forced to pursue continuing education to move up the pay scale, which guarantees revenue for universities while saddling educators with student loan debt that often rivals or exceeds their mortgage payments.
Conclusion
The author concludes that because identifying good teachers through credentials is so difficult and the data so consistently underwhelming, society should stop viewing teaching as the exclusive domain of those with advanced educator credentials. This extends to the author's defense of homeschooling, suggesting that parents don't need formal training to be effective educators.
