Which of the following events marked the beginning of a decline in cigarette smoking in North America?
a. The publication of King James’ A Counterblaste to Tobacco.
b. The imposition of high taxes on cigarettes.
c. A government-mandated reduction in the nicotine content of cigarettes.
d. The 1964 publication of the U.S. Surgeon General’s report.
e. Highly effective anti-smoking campaigns targeted primarily at youth.
Answer: D
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According to research on the testing effect,
a. although testing can improve recall, it is not as helpful as spending the same amount of time studying. b. testing consistently improves recall, no matter whether the retention interval is short or long. c. this effect operates only when students receive feedback on their test scores. d. one explanation is that test-taking creates desirable difficulties.
Joe repetitively taps his pencil on his desk before a test in order to relieve tension. Which type of habit behavior is Joe engaging in?
a. vocal tic b. negative habit c. motor tic d. nervous habit
In general, a positive correlation means as the values of one variable , there is a tendency for the values of the other variable to
a. increase; increase b. increase; decrease c. decrease; increase d. decrease; decrease
When the probability of a correlation being as large as it is if no true relationship exists between the variables is less than 5%, we consider the result statistically significant
Indicate whether the statement is true or false