Teaching experience is positively and significantly associated with student achievement gains throughout a teacher's career, per a review of 30 studies¶

Claim · All claims
Evidence · 1 study (2 entries) · review r2 · q3
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims¶

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i? Of 30 reviewed studies, 28 found teaching experience positively and significantly associated with teacher effectiveness. → Kini 2016 q3 i? All 18 studies using teacher fixed effects found teaching experience positively associated with teacher effectiveness, and all 15 of those examining 7+ years of experience found positive significant returns beyond the first decade. → Kini 2016 (2)

Evidence¶

Kini 2016¶

Kini, T., & Podolsky, A. (2016). Does Teaching Experience Increase Teacher Effectiveness? A Review of the Research. Learning Policy Institute. https://learningpolicyinstitute.org/our-work/publications-resources/does-teaching-experience-increase-teacher-effectiveness-review-research doi:10.54300/625.642

q3 · i? · review · r2

The review's synthesis of 30 studies since 2003 examining teaching experience and student achievement on standardized tests reports that "28 found that teaching experience is positively and significantly associated with teacher effectiveness." No effect size is printed for this synthesis count.

"Of these 30 studies, 28 found that teaching experience is positively and significantly associated with teacher effectiveness."

Kini 2016 (2)¶

q3 · i? · review · r2

Among the roughly two-thirds of reviewed studies using longitudinal datasets with teacher fixed effects, the preferred within-teacher method, the review reports "18 out of 18 found that teaching experience is positively associated with teacher effectiveness." No effect size is printed for this count.

"Of these studies, 18 out of 18 found that teaching experience is positively associated with teacher effectiveness."

Discussion¶

Teachers continue to improve in their second decade of teaching, though fewer studies find improvement after 15 years — a narrower finding that bears on this claim
A Florida study found experience effects in elementary and middle school math and reading up to 0.16 SD for teachers with 15–24 years, but no returns to experience for high school teachers — a narrower finding that bears on this claim
In a North Carolina high school study with teacher fixed effects, achievement returns to experience rose up to 20 years, from about 0.06 SD at 1–2 years to about 0.27 SD beyond 27 years — a narrower finding that bears on this claim
On average, more effective early-career teachers remain in the teaching profession and stay in their initial schools — related
In a North Carolina middle school study, a teacher with 12 years of experience raised scores 0.08 SD in ELA and 0.18 SD in math versus a novice teacher, with returns persisting through 21–27 years — a narrower finding that bears on this claim

Page metadata

Field	Value
`type`	`claim`
`id`	`teaching-experience-positive-achievement-gains-review`
`title`	`Teaching experience is positively and significantly associated with student achievement gains throughout a teacher's career, per a review of 30 studies`
`description`	`Teaching experience is positively and significantly associated with student achievement gains throughout a teacher's career, per a review of 30 studies`
`status`	`review`
`evidence_strength`	`strong`
`newest_evidence`	`2016`
`generated`	by `process:wiki-ingest` on `2026-10-10`
`trust`	unverified — no one has confirmed this page's content
`sources`	2 — `kini-2016`, `kini-2016-2`

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