According to Piaget's stages of cognitive development, the ability to understand that the quantity of a substance remains the same even when its appearance changes is known as __________.

During which of Piaget's cognitive development stages do children develop the ability to perform abstract thinking and hypothetical reasoning?

During a psychology experiment, a toddler is repeatedly given a small toy to play with. After a while, the toddler loses interest and starts looking for other things to do. This demonstrates that the toddler has __________ to the toy.

During a routine pediatric visit, a 3-year-old child clings to their parent and cries uncontrollably when the nurse attempts to take them for a height measurement. This behavior is most indicative of:

Which concept describes the cognitive ability to recognize that other people have their thoughts, feelings, and perspectives, distinct from one's own?

Which example would most strongly argue against the sequence of stages in Piaget's theory of cognitive development?

Why might a 6-month-old infant not show any interest when their caregiver hides behind a curtain during a game?