Because we publish our own assessment instruments, PAR has the advantage of being able to provide you with unique insights on our products that simply aren’t available anywhere else. This is exactly why we make white papers available to you—free of charge—for selected tests. The following white papers are currently available to you: The Autism Spectrum Disorder Decision Tree (ASD-DT) for the PDD Behavior Inventory (PDDBI). This resource helps readers use the products for screening and intervention planning. You can find the new white paper under the Resources tab on the PDDBI page or via this direct link . The Development of the Academic Achievement Battery (AAB). This white paper provides you with insights and details on the AAB’s novel approach to reading comprehension. Customers can find the new white paper under the Resources tab on the AAB page or via this direct link . The Emotional Disturbance Decision Tree (EDDT) family of rating forms. This document helps readers use the suite of products to gain multiple perspectives by comparing dyads or triads of raters. This white paper can be found via this direct link or under the Resources tab on the EDDT , EDDT-PF , and EDDT-SR product pages. We’re happy to offer our Customers the additional insights available in these documents. We plan to offer you additional white papers in the future, so please watch for updates.