Short rhythmic bursts of brain-wave activity called sleep spindles periodically appear during which stage of sleep?

Javier's father works together with him in a coordinated, fluid way. Each focuses on the same aspect of a problem. Javier's father prefers a(n) __________ style of communication

A) collaborative B) hierarchical C) abstract D) authoritarian

Which of the following statements regarding memory strategies is not true?

A) Older children are more likely to use organization than younger children. B) Younger children are more likely to use elaboration than older children. C) Younger children can be trained storage strategies that normally are used by older children. D) Active rehearsal has more learning advantages than passive rehearsal.