Claims

Heistad (2008) found a statistically significant positive effect of Read Naturally® on the NALT Reading measure in a matched quasi-experiment

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2013 · 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? In a quasi-experimental study matching 44 third-grade students (22 per group) on pretest, grade, demographics, and school AYP status, the author reported and the WWC confirmed a statistically significant positive effect on the NALT Reading portion. → Read Naturally® Updated July 2013 — WWC Intervention Report 2013

Evidence

Read Naturally® Updated July 2013 — WWC Intervention Report 2013

Read Naturally® Updated July 2013 — WWC Intervention Report. (2013). What Works Clearinghouse, U.S. Department of Education. https://ies.ed.gov/ncee/wwc/InterventionReport/407

q2 · i? · causal · r2

Quasi-experimental study meeting WWC standards with reservations (Heistad, 2008): students in three Minneapolis Read Naturally® schools were matched with comparison students from other district schools. The report states the author reported, and the WWC confirmed, a statistically significant positive effect on the NALT Reading portion; no effect size is printed.

"The author reported, and the WWC confirmed, a statistically significant positive effect for the first reading measure."

Discussion

Page metadata
Field Value
type claim
id heistad-2008-significant-nalt-reading-effect
title Heistad (2008) found a statistically significant positive effect of Read Naturally® on the NALT Reading measure in a matched quasi-experiment
description Heistad (2008) found a statistically significant positive effect of Read Naturally® on the NALT Reading measure in a matched quasi-experiment
status review
evidence_strength weak
newest_evidence 2013
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 1 — read-naturally-updated-july-2013-wwc-intervention-report-2013

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