20% off and Free Shipping on ABAS-3 Preorders!

Update your adaptive functioning assessment with the new ABAS-3, now featuring intervention tips for all ages and available on the WPS Online Evaluation System.

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20% off and Free Shipping on ABAS-3 Preorders!

PPA Scale Now Available for Preorder

By Kathleen T. Williams

Introducing the NEW Phonological and Print Awareness Scale (PPA Scale). Order now for 10% off and FREE shipping!


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PPA Scale Now Available for Preorder

SPM Quick Tips Now Available!

By Diana A. Henry, MS, OTR/L, FAOTA  

The new SPM Quick Tips (QT) is a collection of strategies for integrating sensory-based activities into a child’s everyday life.


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SPM Quick Tips Now Available!

Introducing GOAL

by Lucy Jane Miller, PhD, OTR, Thomas Oakland, PhD, and David S. Herzberg, PhD

This innovative assessment of functional motor skills consists of seven Activities based on real occupations of a child's daily life.


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Introducing GOAL

Research Participation >

Join us in our effort to standardize new tests and revisions, and you may be eligible for free WPS test materials or monetary payment.

Graduate School Alliance Program (GSAP) >

If you are a university-based instructor or trainer, WPS offers a selection of complimentary products for use in scholarly courses and training.

Training & Workshops >

Gain valuable experience and learn how to use and interpret select WPS tests.

  • ADOS-2 Clinical Workshop
  • SI Certification Program
  • Third Party Training