The Centers for Disease Control and Prevention recommends that children be vaccinated against most vaccine-preventable disease by the time they are which age?
A. 12 months
B. 18 months
C. 2 years
D. 3 years
Answer: C
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Some memory-enhancing supplements appear to act in common by ____
a. increasing amyloid-? b. enhancing LTP c. decreasing calcium levels d. stimulating acetylcholine receptors
A critical difference between bulimia and binge eating disorder is that those with bulimia ____.?
a. ?use recurrent inappropriate compensatory behaviors in order to prevent weight gain, while those with binge eating disorder do not b. ?eat an amount of food that is “definitely” larger than what most individuals would eat in a similar period of time under similar circumstances, while those with binge eating disorder eat an amount that is “somewhat” larger c. ?the behavior occurs at least once a week for three months, while it occurs at least twice a week for two months for those with binge eating disorder d. ?are very upset by their eating disorder while those with binge eating disorder are not
In Europe, the typical container of fruit and yogurt is roughly 6 ounces. In the United States, the same food item is usually packaged in 8-ounce containers. The unit bias suggests that:
a. a French person in the United States would be likely to eat the entire container, even though it contains 25% more than the typical French serving. b. an American visiting Paris would almost certainly miss the extra 2 ounces of yogurt. c. a French person visiting the United States would carefully evaluate the differences in packaging to ensure that he or she does not consume more than usual. d. all people would be unsatisfied with the 6-ounce serving in France.
Mary wants to find out whether eating sugary snacks before an exam leads to better performance on the exam. Which of the following strategies would answer her question most conclusively?
a. Identify a large number of students who perform exceptionally low and exceptionally high in exams, ask them whether they eat sugary snacks before exams, and see whether high performers eat more sugary snacks before exams than do low performers. b. Wait for exam time in a big class, ask everyone whether they ate sugary snacks before the exam, and see whether those who ate sugary snacks before the exam do better compared to those who didn't. c. Wait for exam time in a big class, give a random half of the students M&Ms before the exam, and see whether the students who ate M&Ms perform better. d. Pick a big class, give all students sugary snacks before one exam and salty snacks before the next exam; then see whether students score lower on average in the second exam.