Studies of U.S. children in a normal versus extended school year reveal that
a. students in the normal (180-day) year perform better.
b. students in the extended (210-day) year perform better.
c. students perform the same regardless of the type of school year.
d. the longer school year lowers performance due to heightened stress.
B
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The two most important risk factors associated with increased risk of coronary heart
disease are a. hostility and impatience. b. high blood pressure and high levels of cholesterol in the blood. c. body weight and coping abilities. d. autoimmune response and emotional reactivity to stressful situations. e. high blood pressure and autoimmune response.
Regarding late nineteenth-century American culture, smoking opium was to Chinese immigrants as
a) drinking opium was to Europeans and Americans b) smoking marijuana was to Europeans and Americans. c) injecting heroin was to Europeans and Americans. d) snorting cocaine was to Europeans and Americans.