SpellRead™ shows potentially positive effects on alphabetics for adolescent readers, with an average improvement index of +23 across two studies¶

Claim · All claims
Evidence · 1 study · quant-synthesis r2 · q3
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Across two RCTs including 137 adolescent readers, SpellRead™ received a WWC rating of potentially positive effects in the alphabetics domain, with improvement indices ranging from –9 to +49 and a domain-average effect size of 0.61. → alphabetics-summary

Evidence¶

alphabetics-summary¶

U.S. Department of Education, Institute of Education Sciences, What Works Clearinghouse. (2013, January). Adolescent Literacy intervention report: SpellRead™. http://whatworks.ed.gov

q3 · i? · quant-synthesis · r2

WWC synthesis of two randomized controlled trials meeting evidence standards without reservations, covering 137 students in grades 5 and 6. The summary table prints an average improvement index of "+23" with range "–9 to +49" for alphabetics, based on 2 studies and 137 students, with extent of evidence rated "Small".

"Alphabetics Potentially positive effects +23 –9 to +49 2 137 Small"

Discussion¶

Related Claims¶

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