Denyse is calm, even-tempered, self-content, comfortable, unemotional, and hardy. She is low on which of these "big five" personality traits?

Which hormone can help a person facing stress but can lead to high blood pressure and imbalanced blood sugar levels when the level of this hormone remains high for too long?

A. thyroxin B. melatonin C. cortisol D. oxytocin

Ten-year-old Andrea has an IQ of 130. This means that she

A) performed as well as or better than 98 percent of her same-age peers. B) scored higher than 98 percent of all children. C) scored three standard deviations above the mean. D) performed as well as or better than 84 percent of her same-age peers.