• Complete coverage of administration, scoring, interpretation, and reporting
• Expert advice on avoiding common pitfalls
• Conveniently formatted for rapid reference

The hands-on guide for confidently administering, scoring, and interpreting the WJ IV^® Tests of Achievement

Written by Nancy Mather and Barbara J. Wendling—two experts on the topic—Essentials of WJ IV^® Tests of Achievement provides step-by-step guidance for administering, scoring, and interpreting the achievement portion of the WJ IV^®.Designed to be an easy-to-use reference, the text goes beyond the information found in the WJ IV^® test manual to offer full explanations of the tests and clusters on the WJ IV^® ACH. This essential guide also explains the meaning of all scores and interpretive features and includes valuable advice on clinical applications and illuminating case studies.

Essentials of WJ IV^® Tests of Achievement contains:

• Concise chapters that feature numerous callout boxes highlighting key concepts, bulleted points, and 'Test Yourself' questions
• Separate chapter on the use and interpretation of the WJ IV^® Tests of Oral Language and how the WJ IV^® ACH and WJ IV^® OL can be used together to increase diagnostic utility
• Expert assessment of the test's relative strengths and weaknesses

This accessible resource highlights the most informative aspects of WJ IV^® ACH, points out common errors, and reviews the complexities of administration and scoring the Woodcock-Johnson Tests of Achievement.

Nancy Mather, PhD, is a Professor at the University of Arizona in the Department of Disability and Psychoeducational Studies. She specializes in the areas of assessment, reading, writing, and learning disabilities. She has served as a learning disabilities teacher, a diagnostician, and an educational consultant.

Barbara J. Wendling, MA, is the Education Director of the Woodcock-Muñoz Foundation and the Director of the Richard Woodcock Institute. She is a co-author of the manuals for the WJ IV^® and the Woodcock Interpretation and Instructional Interventions Programs. She has served as a general education teacher, a learning disabilities specialist, a product manager for a test publishing company, and an educational consultant.

Series Preface xi

Acknowledgments xiii

One Overview 1

Two How to Administer the WJ IV ACH 21

Three How to Score the WJ IV ACH 69

Four How to Interpret the WJ IV ACH 87

Five Use and Interpretation of the WJ IV Tests of Oral Language 159

Six Strengths and Weaknesses of the WJ IV ACH 204
John O. Willis and Ron Dumont

Seven Clinical Applications of the WJ IV ACH 217

Eight Illustrative Case Reports 245

Appendix A Fine Points of WJ IV ACH Administration and WJ IV OL Administration 299

Appendix B Frequently Asked Questions About the WJ IV ACH and the WJ IV OL 311

Appendix C Table for Converting z-Scores (z) to Percentile Ranks (PR) or Standard Scores (SS) 329

References 331

Annotated Bibliography 336

Index 339