SpellRead™ shows potentially positive effects on comprehension for adolescent readers, with an average improvement index of +11¶

Claim · All claims
Evidence · 1 study · quant-synthesis r1 · 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 comprehension domain, with improvement indices ranging from –2 to +24 and a domain-average effect size of 0.27. → comprehension-summary

Evidence¶

comprehension-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 · r1

WWC synthesis of two randomized controlled trials meeting evidence standards without reservations. The summary table prints an average improvement index of "+11" with range "–2 to +24" for comprehension, based on 2 studies and 137 students, with extent of evidence rated "Small".

"Comprehension Potentially positive effects +11 –2 to +24 2 137 Small"

Discussion¶

Related Claims¶

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