Users interested in assessing Dyslexia using the WJ IV™ assessment batteries (WJ IV™ COG, WJ IV™ ACH, and WJ IV™ OL) are strongly encouraged to review the Assessment Service Bulletin below. 

The bulletin describes the various tests and clusters of the WJ IV™ that can be used as part of a larger comprehensive assessment of Dyslexia. You can find the bulletin here: Assessing Dyslexia Using the WJ IV

Additional information regarding the assessment of Dyslexia and other learning disabilities can be found on our Clinical Professional Development page: Clinical Professional Development Resources (