Early Developmental Assessment of Numeracy (EDAN)



Early Developmental Assessment of Numeracy (EDAN) is a novel tool that rapidly assesses a preschool-aged child’s developmental numeracy.


Developmental numeracy is a contemporary term used to describe a young child’s emerging skill-set for understanding and employing numerical cognitive processes. These processes can be observed in infants, toddlers, and preschoolers, prior to their ultimate representation as mathematic calculation. This assessment is appropriate for use with preschool children ages 3-6, and is designed to detect incremental changes in the building-block areas of numeracy. 


The assessment is quick and easy to use (10-15 minute administration time) and, in addition to the actual test materials, offers web-based features to school personnel and parents. These include flexible data management and reporting options that graphically display children’s developmental progress and compare it to that of others within the school district. EDAN’s authors are currently developing normative guidelines (organized by age, gender, and socio-economic status) and accompanying manuals highlighting test administration and technical information.


Future development plans include online test administration for school personnel, parents, and researchers. The EDAN diagnostic tool has the potential to become an important resource for educators, parents, and researchers who actively monitor the development of young children.


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Patent Information:
Education & Training
For Information, Contact:
Chuck Williams
University of Oregon
David Paulsen
Jessica Fanning
Education & Training