WJ III RPI and W-scores: New ASB explanatory report available

What are RPI (Relative Proficiency Index) and W-scores...how do they differ from standard scores?  Why are they the most educationally relevant scores provided by the Woodcock-Johnson III Battery [conflict of interest - I'm a coauthor of the WJ III].

Answers to these important questions are now available in ASB # 11:  Development, Interpretation, and Application of the W Score and the Relative Proficiency Index a new Assessment Service Bulletin available from Riverside Publishing.  The author of the ASB is Dr. Lynne Jaffe.  Click here to access the Riverside web page that lists ASB # 11 (and all prior ASB's).

As described at the Riverside web page:

• The purpose of this bulletin is to familiarize users of the WJ III with the development, interpretation, and application of the W score and the RPI. Specifically, this bulletin describes the levels of interpretive information available in the WJ III, explains the special characteristics and usefulness of the W scale, and describes how the RPI fits into the hierarchy of information used to interpret test results, including, the differences between the RPI and peer-comparison scores, the usefulness of the RPI in clarifying diagnostic profiles and designing interventions and considerations for using the RPI in view of the Individuals with Disabilities Education Act (IDEA) 2004, and the use of the RPI in clinical research.

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, intelligence, cognition, testing, psychometrics, RPI, w-score, relative proficiency index, proficiency, psychological measurement, Riverside Publishing, Lynne Jaffe