Contextual factors, or external factors, are environmental influences and can impact not just a diagnosis but the life course of a person with autism and their families.  A recent commentary by autism researchers around the world highlights the importance of these factors and provides resources on how they can be collected in a rigorous, but accessible, way.  Dr. Marsha Mailick, lead author of the commentary, discusses the definition of contextual factors, why they are important, and how they can influence development.  Read the commentary – open access – here:  https://onlinelibrary.wiley.com/doi/10.1002/aur.3312