Which approach looks at the quality of cognitive functioning at different stages of life?

A) Psychometric
B) Piagetian
C) Information-processing
D) Behaviorist

Piagetian approach focuses on studying the differences in cognitive functioning at different stages of life. This approach is based on the idea that cognitive development occurs through a series of distinct stages, each with its unique way of understanding and processing information. Piaget identifies four stages of cognitive development: the sensorimotor stage, preoperational stage, concrete operational stage, and formal operational stage. By studying the cognitive abilities and limitations of individuals at each stage, researchers can gain insight into how cognitive development occurs and how to promote optimal cognitive functioning.