These guidelines are organized as follows: We start with definitions of the key terms used in this document. We then provide a general discussion of factors that can influence the assessment of ELLs. Next, we address developing assessment specifications, test items, and scoring criteria. This is followed by the sections on external test reviews and evaluating items. The last several sections of these guidelines focus on scoring constructed-response items, testing accommodations for ELLs, and using statistics to evaluate an assessment and scoring