1. Editorial Preface

   • Fred R. Volkmar

   Preface Pages: 1 - 2

2. Outcome in High-Functioning Adults with Autism with and Without Early Language Delays: Implications for the Differentiation Between Autism and Asperger Syndrome

   • Patricia Howlin

   OriginalPaper Pages: 3 - 13

3. Stability and Change Among High-Functioning Children with Pervasive Developmental Disorders: A 2-Year Outcome Study

   • Elizabeth Starr
   • Peter Szatmari
   • Lonnie Zwaigenbaum

   OriginalPaper Pages: 15 - 22

4. Concurrent Validity and Classification Accuracy of the Leiter and Leiter-R in Low-Functioning Children with Autism

   • Katherine D. Tsatsanis
   • Nancy Dartnall
   • Fred R. Volkmar

   OriginalPaper Pages: 23 - 30

5. The PDD Behavior Inventory: A Rating Scale for Assessing Response to Intervention in Children with Pervasive Developmental Disorder

   • Ira L. Cohen
   • Susan Schmidt-Lackner
   • Vicki Sudhalter

   OriginalPaper Pages: 31 - 45

6. Criterion-Related Validity of the PDD Behavior Inventory

   • Ira L. Cohen

   OriginalPaper Pages: 47 - 53

7. Behavioral Assessment of Social Anxiety in Females with Turner or Fragile X Syndrome

   • Katarzyna Lesniak-Karpiak
   • Michèle M. M. Mazzocco
   • Judith L. Ross

   OriginalPaper Pages: 55 - 67

8. Depression, Anxiety, and Relevant Cognitions in Persons with Mental Retardation

   • Elizabeth Glenn
   • Elson M. Bihm
   • William J. Lammers

   OriginalPaper Pages: 69 - 76

9. Low-Dose Fluvoxamine Treatment of Children and Adolescents with Pervasive Developmental Disorders: A Prospective, Open-Label Study

   • Andrés Martin
   • Kathleen Koenig
   • Lawrence Scahill

   OriginalPaper Pages: 77 - 85

10. Behavioral Comparisons in Autistic Individuals from Multiplex and Singleton Families

    • Michael L. Cuccaro
    • Yujun Shao
    • Margaret A. Pericak-Vance

    OriginalPaper Pages: 87 - 91

11. Plasma Amino Acid Levels in Children with Autism and Their Families

    • Sarah Aldred
    • Kieran M. Moore
    • Rosemary H. Waring

    OriginalPaper Pages: 93 - 97

12. Brief Report: Behavioral Adjustment of Siblings of Children with Autism

    • Richard P. Hastings

    BriefCommunication Pages: 99 - 104

13. Brief Report: A Case of Autism Associated with del(2)(q32.1q32.2) or (q32.2q32.3)

    • Louise Gallagher
    • Kristin Becker
    • Michael Gill

    BriefCommunication Pages: 105 - 108

14. Ask the Editor

    • Fred Volkmar

    Note Pages: 109 - 110

15. Announcements

    Announcement Pages: 111 - 111