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156. A recent study showed that after construction to repair a roadway ends, accident rates on the roads rise in comparison to the rates prior to the construction.
Which of the following, if true, most helps to explain the apparent discrepancy above?
157. A recent study found that supermarket shoppers who watched a television ad for a product are 50% more likely to buy the product than those who don’t. Those who listened to radio ads for the product were only 25% more likely to buy it.
Which of the following is the most valid observation based on the information above?
158. Unless Patrick receives a raise for his job or gets a loan from a bank, he will be unable to pay his mortgage this month. Patrick’s request for a raise was turned down, so he will not be able to pay his mortgage.
The conclusion is properly drawn if which of the following is true?
159. Children learn best when things are explained to them verbally and with physical demonstrations. Children score highest on standardized tests when teachers both explain a concept and demonstrate it, as opposed to taking only one approach.
The claim that children learn best when things are explained to them verbally and with physical demonstrations plays which role in the argument?
160. In a weight loss study, participants who swam for one hour daily lost less weight than those who ran for one hour everyday. This evidence supports the conclusion that running is a more effective exercise than swimming.
Which of the following, if true, most seriously weakens the argument above?