Online charter students in New Mexico gain significantly less than brick-and-mortar charter students, offsetting brick-and-mortar reading gains in the aggregate¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q2
Currency · newest study 2019 · 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.

q2 i? Online charter students are behind brick-and-mortar charter students by 159 days of learning in reading and 130 days in math. → Charter School Performance in New Mexico 2019 q2 i? The negative online charter growth is large enough to wipe out brick-and-mortar charters' positive reading growth, producing the null overall reading effect. → Charter School Performance in New Mexico 2019 (2)

Evidence¶

Charter School Performance in New Mexico 2019¶

Charter School Performance in New Mexico. (2019). Center for Research on Education Outcomes, Stanford University. https://credo.stanford.edu/reports/item/charter-school-performance-in-new-mexico-2/

q2 · i? · causal · r2

Matched VCR comparison (Figure 7a) benchmarking New Mexico online charter students against brick-and-mortar charter students, whose performance is set to zero; deficits reported in days of learning.

"To be specific, they are behind brick-and-mortar charter students by 159 days of learning in reading. In math, the academic deficit for online charter students relative to students in brick-and-mortar charters is equivalent to 130 days of learning."

Charter School Performance in New Mexico 2019 (2)¶

Charter School Performance in New Mexico. (2019). Center for Research on Education Outcomes, Stanford University. https://credo.stanford.edu/reports/item/charter-school-performance-in-new-mexico-2/

q2 · i? · causal · r2

The report's own interpretation (Figures 7 and 7a discussion) of why the aggregate reading effect in Figure 3 is null: online students' negative growth cancels brick-and-mortar students' positive growth.

"the negative relative growth of online charter students is sufficiently large as to wipe out the positive relative growth of brick-and-mortar charter students in reading, which leads to the lack of overall New Mexico charter school effects on reading growth in Figure 3."

Discussion¶

Page metadata

Field	Value
`type`	`claim`
`id`	`nm-online-behind-brick-and-mortar`
`title`	`Online charter students in New Mexico gain significantly less than brick-and-mortar charter students, offsetting brick-and-mortar reading gains in the aggregate`
`description`	`Online charter students in New Mexico gain significantly less than brick-and-mortar charter students, offsetting brick-and-mortar reading gains in the aggregate`
`status`	`review`
`evidence_strength`	`moderate`
`newest_evidence`	`2019`
`generated`	by `process:wiki-ingest` on `2026-10-08`
`trust`	unverified — no one has confirmed this page's content
`sources`	2 — `charter-school-performance-in-new-mexico-2019`, `charter-school-performance-in-new-mexico-2019-2`

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