Click on the following links to expand and show embedded video
An infant demonstrates developmental milestones from 2 to 4 months of age (6:50)
This is a collection of clips demonstrating Piaget’s stages of development including the sensorimotor, preoperational, concrete operations, and formal operations stages (6:17)
The “Strange Situation” experiment illustrates secure, insecure, avoidant, and ambivalent attachment (3:38)
