After two years of SRI, the intervention effect on strategy knowledge had further increased, and positive effects emerged on reading comprehension¶

Claim · All claims
Evidence · 1 study (2 entries) · causal 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? The intervention effect on strategy knowledge grew from 2.471 after one year to 2.946 after two years in favor of the experimental group. → Droop 2016 q3 i? At the end of Grade 4, positive intervention effects on reading comprehension were found. → Droop 2016 (2)

Evidence¶

Droop 2016¶

Droop, M.; van Elsäcker, W.; Voeten, M. J. M.; Verhoeven, L. (2016). Long-Term Effects of Strategic Reading Instruction in the Intermediate Elementary Grades. Journal of Research on Educational Effectiveness. https://doi.org/10.1080/19345747.2015.1065528

q3 · i? · causal · r2

Multilevel model (Model 2) of the two-year cluster-randomized trial shows the strategy-knowledge intervention effect increased by the end of Grade 4; the article reports the mean difference in learning gain "was 2.946 in favor of the experimental group."

"after two years of intervention, the mean difference in learning gain on the reading strategies questionnaire between the experimental group and the control group was 2.946 in favor of the experimental group."

Droop 2016 (2)¶

q3 · i? · causal · r2

The abstract states that at the end of Grade 4 "there were also positive intervention effects on reading comprehension," measured with the Aarnoutse and Schellings Reading Comprehension Test and a PIRLS-2006 booklet, analyzed with multilevel models.

"At the end of Grade 4, there were also positive intervention effects on reading comprehension."

Discussion¶

Page metadata

Field	Value
`type`	`claim`
`id`	`sri-two-year-effects-strategy-knowledge-comprehension`
`title`	`After two years of SRI, the intervention effect on strategy knowledge had further increased, and positive effects emerged on reading comprehension`
`description`	`After two years of SRI, the intervention effect on strategy knowledge had further increased, and positive effects emerged on reading comprehension`
`status`	`review`
`evidence_strength`	`moderate`
`newest_evidence`	`2016`
`generated`	by `process:wiki-ingest` on `2026-10-15`
`trust`	unverified — no one has confirmed this page's content
`sources`	2 — `droop-2016`, `droop-2016-2`

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