By Bryan L. Euler, PhD
Includes both exclusionary and inclusionary items
- Emotional Disturbance Characteristics scales include Inability to Build or Maintain Relationships, Inappropriate Behaviours or Feelings, Pervasive Mood/Depression, and Physical Symptoms or Fears.
- Screening items are included within the Attention-Deficit Hyperactivity Disorder cluster and the Possible Psychosis/Schizophrenia cluster.
- The Level of Severity cluster and the Educational Impact cluster address how emotional and behavioural problems affect students and aid in the development of recommendations and interventions.
Valid and reliable for a variety of users
- Norms are based on a sample of 601 children who were demographically matched to the U.S. population. Data were also collected on a sample of 404 children eligible for special education due to an ED diagnosis.
- Internal consistency was high (r = .94) for the EDDT Total Score and ranged from .75 to .88 for the scales. In addition, test-retest stability was high (r = .92) and interrater reliability was good (r = .84) for the EDDT Total Score.
- Convergent validity was examined using the CAB™ Teacher and Parent Forms, the BASC-2 Teacher Form, and the Teacher Report Form of the CBCL. Validity also was examined in populations of children with specific learning difficulties, speech/language impairment, mental retardation, ADHD, autism spectrum disorder, and social maladjustment