In short-term memory, individuals retain information for up to _____ if there is no rehearsal of the information.

Approximately what percentage of an infant’s sleep is REM sleep?

_____ occurs when children adjust their schemes to take new information and experiences into account.

The second Piagetian stage of development is the preoperational stage that lasts from approximately _____ years of age.

Which of the following scenarios best represents Lev Vygotsky’s view of mental and behavioral development?

_____ motor skills are skills that involve large-muscle activities, such as moving one’s arms and walking.

 _____ attention involves action planning, allocating attention to goals, error detection and compensation, monitoring progress on tasks, and dealing with novel or difficult circumstances.

According to Freud, infants become attached to the person or object:

Object permanence is a phenomenon that occurs in which of Piaget’s stages: 

Piaget’s preoperational stage is so named because he believed that children in this stage of development: