The zone of proximal development is a concept developed by __________ that describes the range of cognitive tasks a child cannot yet perform, but will be able to learn with the help of an adult or more experienced peer

Recall from your text that boys are more aggressive than girls, that worldwide, men are more likely than women to be convicted of violent crimes, and if women are arrested, it is typically for nonviolent crimes such as forgery or fraud. According to the authors, these findings suggest the role of _______ factors that contribute to aggression.

A) cultural B) evolutionary C) biological D) social E) psychological

Loudness is associated with a sound wave's

A) amplitude. B) length. C) pitch. D) timbre.