Recent evidence regarding genetic influence on most psychological disorders has shown that
A. single culprit genes are usually responsible for psychological disorders.
B. genes that influence psychopathology are usually recessive.
C. there is no evidence that genes influence psychopathology.
D. multiple genes interact, with each gene contributing a small effect.
Answer: D
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When a brain cell differentiates, it
a. doubles in size. b. pairs up with a glial cell. c. takes on a specialized purpose. d. reaches it age of viability .
In family development theory, the progression of stages or phases of family development are linked to
a. the age of the parents. b. changes in developmental level of children in the family. c. the number of years the parents have been married. d. the number of children in a family.
Which of the following statements is true of humanistic approaches to personality?
A. They carry basic assumptions that have been verified through scientific research. B. They have helped make personality psychology an objective, scientific venture. C. They suggest that people are incapable of moving toward higher levels of functioning. D. They have led to the growth of a significant form of therapy for psychological difficulties.
Because smokers vary in the number of puffs per cigarette, time between puffs, depth of inhalation, and how much of the cigarette is smoked, it would be ___________ to use an aggregate measure of the total number of cigarettes smoked as an index.
a. important b. preferable c. unadvisable d. appropriate