Children who suffer child abuse experience epigenetic changes. Which of the following is not true of these changes?
A. They are associated with long-lasting effects on stress hormone responses.
B. They are associated with later medical problems.
C. They are reversible if the children receive attentive caregiving.
D. They are restricted to a small set of candidate genes.
Answer: D
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PET scans differ from CT and MRI scans in that PET scans:
A) produce clearer images of brain structure. B) show which regions of the brain are active as a person performs certain tasks. C) do not involve exposing people to injections of radioactive substances. D) can better identify the presence of a brain tumour.
The change applied to the Binet-Simon intelligence test in 1908 was that
a. separate norm tables were prepared for girls and boys. b. items were added to test dietary-related intelligence. c. the theoretical notion of "mental age" was abandoned. d. the items were age-graded.
The charting of new vocabulary words by associating them with already known words is called fast-mapping
Indicate whether this statement is true or false.
One of the hallmarks of the experimental method that makes it different from a correlational study is that in an experiment,
A. we observe what happens in the natural world. B. the researcher is unaware of the independent variable. C. a variable is manipulated in a way that would not have occurred naturally. D. there are multiple control groups.