According to your textbook, which of the following was reported by studies conducted in Holland and Finland?
a. The volume of gray matter in the brain is correlated with intelligence.
b. The IQ of adopted children correlates less with their biological parents than with their adoptive parents.
c. Dizygotic twins raised apart are more similar to each other in IQ than monozygotic twins raised together.
d. The IQ of dizygotic twins is more correlated than that of monozygotic twins.
Answer: a
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What genetic factors could be involved in the development of PTSD?
a. two short alleles (SS genotype) of the serotonin transporter gene b. dysregulation of the HPA axis c. one long allele (SS genotype) of the serotonin transporter gene d. dysregulation of the sympathetic nervous system
_____________ develops as a result of stimulus discrimination training
a. reinforcement b. punishment c. stimulus control d. expectancy
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Indicate whether the statement is true or false