We share about 98% of our genes with chimpanzees
Indicate whether the statement is true or false
True
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A psychologist is interviewing a refugee to this country who is unfamiliar with the majority culture here. In his former country, this person was spied on by the government and was the victim of robberies and assaults. He is suspicious of most people in authority and does not trust their motives. Which personality disorder might a psychologist suspect of this refugee, given that he did not know the history?
a. borderline b. obsessive-compulsive c. paranoid d. schizotypal
Despite being raised in two very different environments, identical twins Tina and Gina receive a similar score on a shyness scale. These results suggest that correlation between genetics and shyness is a. small
b. large. c. inverse. d. polygenetic.
Meta-analyses of studies exploring the connection between psychosis and marijuana use conclude that ____
a. risk of psychosis is increased by 75 percent in marijuana users b. heavy use of marijuana increases the risk of psychosis by up to 200 percent c. psychotic symptoms observed with heavy marijuana use are due to the transitory effects of intoxication d. estimates states that up to 25 percent of the cases of psychosis might not have occurred if marijuana had not been used
Preventing an extraneous variable from becoming a confounding variable by holding it constant can result in a threat to external validity
a. True b. False Indicate whether the statement is true or false