Achievement growth patterns between Catholic and public school students varied by age and subject¶

Claim · All claims
Evidence · 1 study · associational r? · q2
Currency · newest study 2021 · checked against its sources 2026-10-18 (automated, 1 of 1 entry) · not reviewed by a person · recheck by 2026: baselines and conditions change

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.

q2 i? Growth differences between Catholic and public school students varied by student age (grade level) and by subject (math vs. reading). → Dallavis 2021

Evidence¶

Dallavis 2021¶

Dallavis, J., Kuhfeld, M., Tarasawa, B., & Ponisciak, S. (2021). Achievement growth in K-8 Catholic schools using NWEA data. Journal of Catholic Education, 24(2). http://dx.doi.org/10.15365/joce.2402012021

q2 · i? · associational · r?

The national K-8 MAP Growth sector comparison reports that sector differences in achievement growth were moderated by "age and subject," with early grades showing sector gaps in growth and middle school math showing comparable growth. No statistics are printed in the available text.

"Additionally, these patterns varied by age and subject."

Discussion¶

Learner Variables¶

Age and Developmental Stage — moderator: an instructional effect differs with it

Catholic school students in earlier grades show less academic-year growth than public school peers in both reading and math — a narrower finding that bears on this claim
In middle school, academic-year growth in math was comparable across Catholic and public school sectors — a narrower finding that bears on this claim
Public school students close the achievement gap with Catholic school students to some degree during the school year — a narrower finding that bears on this claim
Catholic school students score higher in math and reading than public school students on average, but enter each school year at a higher level — related

Page metadata

Field	Value
`type`	`claim`
`id`	`sector-growth-patterns-vary-age-and-subject`
`title`	`Achievement growth patterns between Catholic and public school students varied by age and subject`
`description`	`Achievement growth patterns between Catholic and public school students varied by age and subject`
`status`	`review`
`evidence_strength`	`moderate`
`newest_evidence`	`2021`
`source_checked`	`2026-10-18`
`recheck_by`	`2026`
`generated`	by `process:wiki-ingest` on `2026-10-08`
`trust`	unverified — no one has confirmed this page's content
`sources`	1 — `dallavis-2021`

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