Recent research regarding marijuana suggests
a) that it is not at all addictive.
b) it may be addictive.
c) there are clearly withdrawal symptoms.
d) it is not as dangerous as previously believed.
b
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Greta carries the fragile-X chromosome. This means that she:
will be perfectly normal. might be normal or mentally retarded. will be severely mentally retarded. will have several physical abnormalities.
Did you enjoy taking the SAT when you neared the end of high school? Perhaps you thought it was a waste of time. Maybe you'd be interested in reading some research that suggests people who score higher on the SAT
tend to earn better grades in college. The ability of this test to anticipate what will happen in the future is called __________ validity. a. descriptive b. predictive c. external d. anticipatory