“…Taken together, all three scores reflect students’ science domain knowledge and argument structure knowledge. Relatively high interrater agreement (Cohen’s κ = .74 for a total writing scores and Cohen’s κ = .90 for agreement within one score point) was at a level consistent with intervention studies involving ratings of student writing in the elementary grades (Coker et al, 2016; Collins, Lee, Fox, & Madigan, 2017).…”