[A qualitative item analysis of the Scale of Emotional Developmental Diagnostics - Short (SED-S)].

The Scale of Emotional Development - Diagnostic (SEED) is a standardized diagnostic instrument based on the emotional development approach. It contributes to the diagnostic assessment of challenging behaviors in individuals with intellectual developmental disabilities. The 200-item scale determines the emotional reference age from 0-12 years in 8 domains. An expert survey showed a very good to good observability of the described behaviors, the specificity for a certain developmental phase and the appropriateness of the phrasing for children and adults while the non-differentiability to adjacent developmental phases was rated with "hardly". Regarding the differentiability, the major need for revision was described in the domains Relating to Their Own Body, Dealing with Change - Object Permanence, Differentiating Emotions and Regulating Affect and in phases 4 (reference ages: 4-7 years) and 5 (reference age: 8-12 years).