Hirst and colleagues’ study of flashbulb memories for the events of September 11 showed that participants’ memory for ______ details fell sharply while memory for ______ details was better preserved.

Which of the following statements regarding adolescent hormonal research is not true?

A) Because adolescent hormonal concentrations shift over the course of the day, assessments should occur around the same time for all subjects. B) Adolescents most often report changes in mood based on changing activities and events over the course of the day. C) Adolescent moodiness is largely determined by hormonal concentrations. D) Changing environmental circumstances, such as parent fighting, can influence hormonal concentrations.

How much larger was the size of early Homo's brain compared to the brains of earlier hominids?

a. 100% b. 200% c. 55% d. 70%