Robert Hodapp is at Vanderbilt University, Nashville, Tennessee, USA. Dr. Deborah Fidler is a Professor in the Department of Human Development and Family Studies at Colorado State University. Her research expertise is in the area of early development in individuals with neurogenetic syndromes, with a particular focus on the behavioral phenotype in Down syndrome and its implications for intervention and educational practice.

• 1. Redressing the balance: A systematic review of positive psychology in the intellectual disability literatureCarly Albaum, Victoria Chan, Teresa Sellitto, Nisha Vashi, Richard P. Hastings, and Jonathan A. Weiss2. Analytic approaches to heterogeneity in neurogenetic syndrome researchMark A. Prince and Deborah J. Fidler3. A phenotypic approach to understanding obesity in children and youth with Down syndromeLisa A. Daunhauer, Nan Zeng, and Bethany Rigles4. The emergence of fine motor skills in children with Down syndromeAmy Work Needham, Eliza L. Nelson, Aunnika D. Short, Lisa A. Daunhauer, and Deborah J. Fidler5. A review of the literature on siblings of individuals with severe intellectual and developmental disabilitiesCaroline L. Roberts6. School-based executive function interventions reduce caregiver strainDeanna Swain, Mary Troxel, Laura G. Anthony, Lauren Kenworthy, Alyssa Verbalis, Kristina K. Hardy, Allison Ratto, Yetta Myrick, and Bruno J. Anthony7. U.S. school principals and special education legal knowledge: A scoping reviewEllen G. Casale, David W. Golann, and Edward LeMaster