medium · LSAT Logical Reasoning
A study found that individuals who consume at least two servings of blueberries a week perform better on memory tests than those who do not. A nutritionist concludes that adding blueberries to one's diet will improve memory.
Which one of the following, if true, most weakens the nutritionist's conclusion?
- Some people who never eat blueberries nevertheless score very well on memory tests.
- Blueberries are rich in antioxidants shown to support overall brain health in laboratory rats.
- People who regularly eat blueberries are also far more likely to do daily mental exercises known to sharpen memory.
- The memory tests used in the study gauged short-term recall rather than long-term memory.
- Blueberries are the only food whose consumption has ever been linked to memory performance.
Sign up free to see the explanation and track your rank →
More LSAT Logical Reasoning practice
- Which one of the following is an assumption required by the argument?
- Which one of the following can be properly inferred from the statements above?
- The question type just described is best identified as which one of the following?
- The reasoning in the argument is flawed in that the argument
- The reasoning in the argument is flawed because the argument
- Which one of the following most accurately describes the relationship the statement establ
- Which one of the following can be validly inferred from the two conditionals above?
- Which one of the following must be true given the statement above?