Research examining the effects of full-time day care on infant attachment has found
a. strong evidence that day care interferes with attachment.
b. strong evidence that day care interferes with attachment, but only in high-quality day-care settings. c. mixed evidence regarding the effects of day care on attachment.
d. no strong evidence that day care interferes with attachment. e. compelling evidence that day care enhances attachment.
Question 2
In a twin study, an investigator compares concordance rates of fraternal and identical twins. A concordance rate is best described as
a. the degree of genetic similarity between the twins.
b. the degree of environmental similarity between the twins. c. the degree to which twins resemble their parents.
d. the percentage of shared traits or disorders. e. the percentage of genetic overlap.
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