Treatment and comparison groups differed significantly at pretest on most writing and language measures, favoring comparison¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2021: local conditions change quickly

Subclaims¶

q2 i? Several pretests showed the treatment group started significantly lower than the BAU group, which the authors discuss as a limitation despite pretest being a control variable. → Wolbers 2018

Evidence¶

Wolbers 2018¶

Wolbers, K., Dostal, H., Graham, S., Branum-Martin, L., Kilpatrick, J., & Saulsburry, R. (2018). Strategic and Interactive Writing Instruction: An Efficacy Study in Grades 3-5. Journal of Educational and Developmental Psychology, 8(1). https://doi.org/10.5539/jedp.v8n1p99

q2 · i? · causal · r1

Multilevel models with pretest as outcome confirmed preexisting group differences; descriptive tables mark treatment pretests significantly lower (p < .05) on nearly all writing and language measures. The authors state these differences "will be discussed as a limitation."

"Several pretests showed that the treatment group started signif icantly lower than the BAU group."

Discussion¶

Related Claims¶

• Before implementation, treatment students performed significantly below control students on the standardized reading test — related
• SIWI improved discourse-level writing traits in both personal narrative and persuasive genres among grade 3-5 d/hh students — related
• SIWI improved written language accuracy and complexity outcomes, especially for personal narrative writing — related