Researcher Robert Tryon used __________ of rats to demonstrate that certain traits can be promoted by appropriate pairings of genes
a. polygenetic promotion
b. selective breeding
c. dominant gene inhibition
d. heterozygous allele matching
Answer: B
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The procedure called "shaping" occurs at which stage of operant conditioning?
a. At the start of training b. When the animal has learned the response, but still responds slowly c. When training is complete d. At the start of the extinction procedure
A researcher has identified seventy individuals with a relatively rare psychological disorder. These individuals are asked to identify blood relatives, who are contacted by the researcher to see if they have the same disorder. What kind of research study is being performed?
a. an epidemiological survey c. a historical study b. a genetic linkage study d. a correlational case study
Members of some societies endure cutting, burning, whipping, and piercing of the skin that would be agonizing to most people. This is best explained by a difference in pain tolerance that is due to
a. the age and gender of the persons. b. the differences in body chemistry. c. the learned attitudes of different cultures. d. whether the pain avoidance is episodic or occurs in cycles.
Twelve-year-old Christopher is more likely than seven-year-old Jennifer to say that both males and females can possess certain traits. This is because
a. younger children insist that personality traits must be mutually exclusive. b. older children are more flexible in their gender-stereotyping of traits. c. younger girls insist that personality traits must be mutually exclusive. d. older children recognize that personality traits are mutually exclusive according to gender.