A baby girl is sitting in a high chair. Her father is playing with her by ducking down below the table and popping back up. His daughter seems very distressed by this game. Which of the following best describes why this game of peekaboo is upsetting for her?

Piaget is known for his theory of child development through stages. He believed children build their understanding of the world through interactions with it. Which of the following concepts best describes the stage of Piaget's theory associated with egocentrism?

Jean Piaget, a pioneer in developmental psychology, spent years studying cognitive development and the onset of certain abilities at certain ages. He wrote about four stages of cognitive development. Which of the following choices lists these stages in the correct order?

Claudia is 10 years old and has mastered several cognitive tasks. She understands conservation, hierarchical classification, and seriation. However, when her teacher challenges her to engage in hypothetical, abstract reasoning with problems in class, Claudia is unable to solve them. In which stage of Piaget's Cognitive Developmental Theory is Claudia operating?

According to Piaget's theory, due to their advances in cognitive skills, adolescents tend to believe that everyone is looking at them and evaluating them. This is called __________.

Dylan, a 10-month old infant, begins to show signs that he realizes that objects continue to exist even if he cannot see them. According to Piaget's stages of development, which of the following stages does the child exhibit?

Jackie is 16-years-old. Although her processing speed, working memory, and attention abilities have improved, she often makes impulsive decisions at school and home, which often get her into trouble. She does not plan her responses or actions, and she often engages in sensation-seeking activities such as driving fast and experimenting with different substances. Which of the following might explain Jackie’s behavior?

The theory of an inborn universal grammar was put forth by __________.

Charlie is 75-years-old and easily recalls events such as his college graduation, first job, and his wedding day compared to other memories. Charlie is displaying which of the following?

Cody is 7 years old and can tell you that if you pour water from a tall, skinny glass into a fat, short glass, the amount of water stays the same.

According to Piaget, what concept does Cody understand?