You may know the Emotional Disturbance Decision Tree™ (EDDT™) family recently welcomed a new member—the EDDT–Self-Report Form (EDDT-SR) . Here are five things you may not know about this trio of assessment tools. The EDDT is the first instrument of its kind to provide a standardized approach to the assessment of emotional disturbance (ED). The EDDT encompasses all the federal criteria and addresses the broad emotional and behavioral nuances of children who may require special education services for ED. The EDDT–Parent Form (EDDT-PF) and EDDT-SR are available in Spanish, facilitating use with Hispanic/Latino clients. Multi-Rater Summary Forms can be used with all three forms to review responses from multiple raters over time to create a well-rounded picture of an individual's functioning. The EDDT-SR Professional Manual offers additional analysis and scores that have been developed for all three EDDT versions including base rates for discrepancies between raters and reliable change scores. The EDDT , EDDT-PF , and EDDT-SR are all Likert-style response forms that can be completed in less than 20 minutes each, making them easy to administer and time efficient. For more information on the EDDT , EDDT-PF , and EDDT-SR , visit their individual product pages.