The correlation for IQ between parents and children is about .42 whereas the correlation between siblings in the same family is:
a. Much weaker, with a correlation coefficient of about .30
b. Much stronger, with a correlation coefficient of over .60
c. Not identical, but the coefficients for both are between .40 and .50
d. None of the above
C
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Which of the following statements best describes what psychologists now know about the genetic basis of personality?
a. Hundreds of genes have been identified that are directly linked to specific personality traits. b. Technology is not sophisticated enough to link genes and personality characteristics. c. Some genes have been identified that are related to certain aspects of personality function. d. Genes do not contribute to personality characteristics.
Autism occurs more frequently in:
a. Relatives of autistics b. Females c. Families where depression is also a factor d. Underrepresented groups