What did a study of 500 pairs of MZ and DZ twins done in Kentucky find, in terms of intelligence?
a. The correlations between MZ twins and the correlations between DZ twins were similar.
b. The correlations between DZ twins were about the same as those between other siblings.
c. MZ twins were generally smarter than DZ twins.
d. DZ twins were generally smarter than MZ twins.
B
You might also like to view...
Of the following, which is an example of "fluid" intelligence?
a. Finding a creative way to fix a broken machine b. Adding a row of numbers to determine the cost of a product c. Singing a familiar popular song d. Practicing free-throw shooting in basketball
What does a correlation coefficient of -0.94 indicate about two variables?
a. The variables are weakly associated, with both increasing together. b. The variables are strongly associated, with both increasing together. c. The variables are weakly associated, with one increasing as the other decreases. d. The variables are strongly associated, with one increasing as the other decreases.
According to the doctrine of _____________, an event is completely explainable in terms of antecedent events.
a. objectivism b. rationalism c. empiricism d. determinism
What percentage of Italians aged 15 to 24 live with their parents?
a. 94% b. 74% c. 54% d. 34%