There are four basic assumptions of Lifespan Perspective. These assumptions state that development is: lifelong, multidimensional and multi-directional, highly plastic, and affected by multiple, interacting forces. First, development is lifelong, meaning that there is no certain period in a person’s life that is more influential than another. changes in development happen throughout life and occur in three ways: physical, cognitive, and emotional/social. Development is also multidimensional and multi-directional. Multidimensional is how biological, psychological, and social factors blend together and effect development. Every period in a person’s life is composed of both growth and decline in development, which is why it is referred to as
