Teaching Secondary Students to Write Effectively

Eligible outcomes. The study outcomes 

were classified into 10 domains related to 

students’ writing skills (see Table D.1). The 

outcome domains reflect specific types of 

writing knowledge and skills (e.g., including 

text elements of a specific genre) as well 

as overall writing quality. For studies that 

administered multiple measures within a 

domain, the tables in this appendix report 

the overall average effect size for all mea-

sures in the domain meeting WWC group 

design standards.

For consistency, the level of evidence is based 

on outcomes closest to the end of the inter-

vention; these immediate posttest results 

are listed in the appendix tables. Follow-up 

outcomes administered after the immediate 

posttests are presented in the table notes.

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