The 16th century European physician Paracelsus, and later Dr. Thomas Sydenham promoted the use of

Serena works about 10 hours a day, often leaving before her kids go to school. She also brings work home on weekends. Serena has quickly climbed the ladder in her profession and makes a high salary. But her husband and kids wish she would spend more time with them. Vallerand's model would say that Serena's work is guided by which of the following?

a. achievement b. harmony c. obsession d. generativity

Which of the following is a commonly held misconception about heritability?

A) Heritability tells us whether or not a trait can be changed. B) Heritability applies to differences among individuals rather than a single individual. C) Heritability is a changing, never-constant number. D) Heritability is constant across people of different racial and ethnic backgrounds.