The major transmitter substance that appears to be involved in the etiology of

schizophrenia is

a. serotonin.
b. dopamine.
c. GABA.
d. norepinephrine.
e. reserpine.

b. dopamine.

Psychology

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Charles spends most of his time feeling tense and anxious. He has a good job but worries that he might be

fired at any time. Charles has an increased risk of having a heart attack because A) he has a Type X personality. B) he has a Type A personality. C) he has a Type B personality. D) he has a Type D personality.

Psychology

The t distribution

a. is smoother than the normal distribution. b. is quite different from the normal distribution. c. approaches the normal distribution as its degrees of freedom increase. d. is necessary when we know the population standard deviation.

Psychology