An Investigation of the Validity and Utility of Two Curriculum-Based Measurement Writing Tasks

We investigated 2 curriculum-based measurement tasks for writing with 170 students in 2nd and 3rd grade. The 2 tasks, Story Starter and Picture Story, varied on topical support. Both tasks used production and accuracy scores, and we developed a qualitative score for Picture Story. All production and accuracy scores and the qualitative score demonstrated low to moderate validity coefficients with the Woodcock–Johnson Test of Achievement Writing Samples subtest and a teacher rating of overall writing ability. All scores were sensitive to grade-level differences in performance, with 3rd-grade students performing higher than 2nd-grade students. Two scores for Picture Story were sensitive to growth only for 3rd-grade students, and 5 scores were sensitive to bimonthly growth for both grade levels. There was moderate classification accuracy for both tasks.