The WJ IV Tests of Early Cognitive and Academic Development (ECAD) measure general intellectual ability, early academic skills, and expressive language skills in children ages 2:6 through 7:11 and children with cognitive developmental delays through age 9. There ECAD battery contains 10 tests.
Number Sense, Counting
An estimated duration of each subtest is not provided.
Complete Kit (includes ECAD Test Book, ECAD Comprehensive Manual, ECAD Test Records and Response Worksheets with Individual Score Reports Pkg 25, ECAD Audio CD): $894.30
The WJ IV University Training Package is designed to help university professors train students how to use the Woodcock-Johnson IV (ECAD). The Woodcock-Johnson IV ECAD Self-Study Training Video with Workbook and Woodcock-Johnson IV ECAD Examiner Training V
Level C (Purchasing requires a doctorate degree in psychology, education, or a closely related field; licensure or certification to practice in your state in a field related to the purchase; Certification by or full active membership in a professional org
Access and Use
Instrument Use in Peer-Reviewed Studies
Resources on Psychometric Properties
McGrew, K. S., LaForte, E. M., & Schrank, F. A. (2014). Technical Manual. WoodcockJohnson IV. Rolling Meadows, IL: Riverside. Retrieved March 21, 2019: https://www.wjscore.com/Files/WJIVTechnicalManual.PDF