The supporting evidence is a randomized controlled trial in which 108 kindergarten English learners watched 54 episodes of Arthur or Between the Lions over one school year¶
Claim · All claims
Evidence · 1 study · causalr?·q3
Currency · newest study 2006 · 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? In the one study meeting WWC evidence standards, 51 children were assigned to watch Arthur and 57 to watch Between the Lions, three 30-minute episodes per week from October to May, with teachers directed not to use follow-up activities. → Arthur (WWC Intervention Report) 2006
Evidence¶
Arthur (WWC Intervention Report) 2006¶
Arthur (WWC Intervention Report). (2006). What Works Clearinghouse, U.S. Department of Education. http://pbskids.org/arthur/index.html
q3 · i? · causal · r?
Randomized controlled trial conducted in six schools in a large urban district on the East Coast, in Spanish-English classrooms with bilingual teachers. The intervention group "watched a 30-minute episode of Arthur at school, three times a week between October and May of one school year, for a total of 54 episodes."
"The study involved 108 kindergarten students (47 girls and 61 boys). Fifty-one children were assigned to watch Arthur; 57 were assigned to watch Between the Lions."
Discussion¶
Related Claims¶
- Watching Arthur improves English narrative skill development in kindergarten English language learners more than an alternative educational program (potentially positive effects) — related
- Mean clause length showed a small negative difference favoring the comparison group, not statistically significant — related
- The average improvement index for Arthur in English language development is +11 percentile points, ranging from –5 to +17 across findings — related
- Small-group instructional intervention for students struggling in literacy and English language development is supported by six RCTs at moderate evidence level — related
- The WWC rated Arthur as having potentially positive effects rather than positive effects because only one study met evidence standards and it lacked a strong design — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
arthur-uchikoshi-rct-design |
title |
The supporting evidence is a randomized controlled trial in which 108 kindergarten English learners watched 54 episodes of Arthur or Between the Lions over one school year |
description |
The supporting evidence is a randomized controlled trial in which 108 kindergarten English learners watched 54 episodes of Arthur or Between the Lions over one school year |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2006 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — arthur-wwc-intervention-report-2006 |
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