Whether you need to screen, diagnose, or track individuals on the autism spectrum, the PDD Behavior Inventory™ (PDDBI™) family of products has what you need. The original PDDBI was developed to assess both problem behaviors as well as appropriate social, language, and learning/memory skills. The two newest supplements to the product line expand its use, making it even easier to diagnose, track, and assess autism spectrum disorder. Now available! The PDDBI Professional Manual Supplement: Autism Spectrum Decision Tree (ASD-DT) The ASD-DT is designed to enhance the diagnostic power of the PDDBI. Once a parent or teacher has completed the Extended Form, the ASD-DT allows you to use those scores to complete the branches of a decision tree that ultimately results in a diagnostic category. An algorithm is used to transform PDDBI scores into subgroups of ASD (Atypical ASD, Minimally Verbal ASD, or Verbal ASD) as well as non-ASD subgroups. Intervention suggestions and further recommendations are provided for all subgroups. The ASD-DT is designed to be used with individuals ages 1:6 to 12:5 years. Now available! The PDDBI Professional Manual Supplement: Adolescent Normative Data This new supplement extends the age range of the PDDBI normative data to age 18:5 years. Ideal for use when monitoring progress over time, this extension to the normative data can be used with both parent and teacher ratings on the PDDBI. The standardization sample includes individuals from a range of racial and ethnic backgrounds and geographic regions. The adolescent normative data are appropriate for use when either the standard or extended items are administered. Whether you are a PDDBI user who wants to expand its use in your practice or are new the PDDBI family of products, visit www.parinc.com today to order the materials you need!