DEVPSYCH 1. _____ is characterized by constant change. 2. It is a developmental force that includes all genetic and health-related factors that affect development. 3. It concerns whether a particular developmental phenomenon represents a smooth progression. 4. It is a developmental force that includes all internal perceptual, cognitive, emotional, and personality factors that affect development. 5. A developmental force that includes interpersonal, societal, cultural, and ethnic factors that affect development.