Intellectual Development: Age 17–45 This question has plagued psychologists for decades. Cross‐sectional studies of IQ tend to show that young adults perform better than middle‐aged or older adults, while longitudinal studies of IQ appear to indicate that people increase in intelligence through the decades, at least until their 50s. Apr 17, 2014 · As people age, they discover that their thought processes change. Though some cognitive abilities decrease in middle age, some increase. In this lesson, we'll look at how executive functioning and.
Cognitive development and intellectual development really focuses on the way changes in the brain occur related to how we think and learn as we grow. Children do not just know less than adults do, there are differences in the very way that they think about and understand their experiences. Oct 15, 2010 · The Piaget stages of development is a blueprint that describes the stages of normal intellectual development, from infancy through adulthood. This includes thought, judgment, and knowledge. The.