The heritability coefficient of extraversion is approximately .5, which means that:
A) a child psychologist can predict with 50% accuracy a client's extraversion level if she knows the extraversion levels of the child's parents.
B) children inherit 50% of the tendencies toward extraversion or introversion from their mother, and 50% from their father.
C) in any given child, half of extraversion is caused by genetic factors and half is caused by the environment.
D) in a large group of children, 50% of the variability in extraversion scores would be due to genetic factors.
D) in a large group of children, 50% of the variability in extraversion scores would be due to genetic factors.
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If someone tells you to expect a persuasive speech, what is the effect? a. You pay less attention to the speech than usual
b. You pay closer attention to the speech than usual. c. The speech will influence your opinions less than usual. d. The speech will influence your opinions more than usual.
Children who demonstrate resilience in response to maltreatment show __________.
A. the ability to bounce back from stress and maltreatment B. daily cortisol levels that cannot change C. inability to recover from stress and maltreatment D. no ability to respond to positive influences in the environment, such as a relationship with a supportive adult
Which of the following statements is true about PTSD?
a. It is unrelated to the severity of the trauma. b. It is four times as common in men who have been exposed to trauma. c. It is related to the level of distress the person is experiencing at the time of the traumatic event. d. Genetic factors do not play a role in whether PTSD develops.
A well-balanced diet combined with vitamin and mineral supplements seems to .
A. speed up cellular damage associated with aging B. slow down cellular damage associated with aging C. lead to better education D. keep a person skinny