Students with significant disabilities must participate in large-scale assessments, often using an alternate assessment judged against alternate achievement standards. The development and administration of this type of assessment must necessarily balance meaningful participation with accurate measurement. In this study, generalizability theory is…

This study describes validation data for qualitative and quantitative writing measures useful with a full range of students, including special education students, in grades three through five. The study looked for consistent administration and scoring, sensitivity in differentiating groups of students, relation to other accepted assessments, and…