Investigates the developmental, gender, and practical considerations surrounding three categories of Curriculum Based Management written language scoring indices. With only one exception, older students outperformed younger students on all of the scoring indices. Although at the middle school level students' levels of writing fluency and writing accuracy were not closely associated, at the younger grade levels the CBM indices were significantly related. (Contains 10 references, 5 tables, and 1 figure.) (GCP)