Which of the following is a primary drive?

A person with acute stress disorder is most likely to develop posttraumatic stress disorder when

a. the trauma is especially severe. b. the trauma involves the possibility of death. c. symptoms of numbing, depersonalization, and reliving the trauma are present. d. the person develops a complete amnesia for the traumatic event.

According to Piaget, which of the following is crucial to cognitive development at the sensorimotor stage?

a. egocentrism b. attachment c. language d. object permanence