1. According to Piaget's theory of Cognitive Development, a newborn spends the majority of his first 4 months in which stage?
Concrete Operational Stage
Formal Operational Stage
Preoperational State
Sensorimotor Stage
2. Sitting when propped or in a high chair and beginning to sit alone are physical development milestones for an infant ages
three to six months
four to eight months
newborn to four months
it varies from infant to infant