Changes in the administration of an assessment (such as setting, scheduling, timing, presentation format, response mode, or others), including any combination of these that does not change the construct intended to be measured by the assessment or the meaning of the resulting scores. Accommodations are used for equity, not advantage, and serve to level the playing field. To be appropriate, assessment accommodations must be identified in the studentâ€™s Individualized Education Program (IEP) or Section 504 plan and used regularly during instruction and classroom assessment. Assessing Special Education Students SCASS, Council of Chief State School Officers. (2003).