A _______________ is a medical doctor who diagnoses and treats mental disorders and takes a more biological approach than other psychotherapists

By comparing behavior within pairs of dizygotic twins with that of pairs of monozygotic twins, researchers can determine if monozygotic twins are more similar on a particular trait, on average, than dizygotic twins.

Answer the following statement true (T) or false (F)

In which qualitative research method does the researcher have initial guiding questions or core concepts to ask about, but is free to move the conversation in any direction of interest that may come up?

a. participant observation b. direct observation c. unstructured interview d. case study

Mark and Tracy are fascinated with each other, care about each other, and want a special relationship with each other for the rest of their lives. According to the triangular model of love, their love would be called

a. romantic love. c. companionate love. b. consummate love. d. everlasting love.

Affective states accompanied by physiological changes that often influence behavior are called __________

a. motives b. drives c. emotions d. traits