Schaie's Stages Of Life Span Of Development
Schaie's stages of life span development reflects an examination of the stages of life: acquisition, young adult, achieving, responsible, and executive.
Each of these is a stage involved in the learning of information which is used to meet the challenges that occur in the different stages of life.
K. Warner Schaie's work focused on the stages of psychological development from young adulthood to old age. He is best know for his Seattle Longitudinal Study, a 'life span' approach to aging and cognition, which studied subjects from birth throughout the life course. His work is still utilized in gerontology (hyperlink) studies and has influenced some fields to raise the retirement age from 65 to 70.