Suppose that the concordance values for a certain trait are very high for both MZ and DZ twins. This trait is likely due to a(n)

The theorist who advanced the wish-fulfillment idea about dreaming was

a. Cartwright. b. Hobson. c. McCarley. d. Freud.

According to the biological model, sensation seekers are drawn to certain activities because they

A) may have a low level of dopamine, and therefore seek activities that stimulate the production of dopamine. B) may have a high level of serotonin, and this higher level drives them to participate in certain activities. C) are unable to produce any neurotransmitters, and therefore, are driven toward activities that would cause their bodies to feel the same way as someone who does produce neurotransmitters. D) had early experiences in life that were traumatic, and they seek out extreme sensations to block those memories. E) have a structural abnormality of the brain that makes them insensitive to danger.

Given the discussion of current knowledge on gender and communication, which of the following, if any, would be constructive ways to improve misunderstandings between men and women

a. Increasing knowledge of the gendered nature of personal expression. b. Not taking comments made by romantic partners so personally; seeing that they are shaped by gender roles. c. Do whatever possible to avoid getting frustrated and ending communication. d. All of the above

Dr. Azure measures sound waves and electromagnetic radiation

and relates them to the sensations people experience as loudness and brightness, respectively. Dr. Azure is conducting research in the area of a. physiological psychology. b. neurological psychology. c. psychophysics. d. sensory deprivation.