Roger is typically an easygoing adolescent but every once in awhile he suddenly becomes moody and lashes out at his younger sister. Which of the following pubertal processes would most likely contribute to this behavior?

fluctuating estrogen levels
a sudden increase in testosterone levels
a sudden increase in cortisol
a sudden burst of GnRH

a sudden increase in testosterone levels

Psychology

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The hip-hop artist Pharell Williams used __________ as the basis for N.E.R.D. album "Seeing Sounds."

a. the law of pragnanz b. synesthesia c. perceptual adaptation d. grapheme-color association

Psychology

A psychologist spends her entire career studying how and why changes occur in people as they get older. This psychologist is most likely a(n) ________ psychologist

a. personality b. developmental c. health d. evolutionary

Psychology