Sheldon is a huge fan of heavy metal music. His bedroom walls are plastered with posters of Slayer, Metallica, and Led Zeppelin. Sheldon practices guitar daily and hopes to have a career in music -- if not as a "guitar god," then as a studio mus

Researchers are exploring within-person variation or intraindividual variation as a way to understand the aging process and individual gains and losses

Indicate whether the statement is true or false.

According to the dynamic systems perspective,

A) children coordinate separate skills into more effective, emotionally expressive systems as the central nervous system develops. B) children's goals and experiences have only a minimal impact on emotional development. C) emotions become clear, well-organized signals by adolescence. D) infants come into the world with a repertoire of basic and self-conscious emotions.