medium · LSAT Logical Reasoning
A nutritionist observed that participants who began drinking green tea daily reported significant improvements in their sleep quality. The nutritionist concluded that the antioxidants in green tea cause better sleep.
Which one of the following, if true, most seriously weakens the argument?
- People disciplined enough to drink green tea every day are also more likely to keep a consistent nightly sleep schedule
- Some people who never drink green tea at all also report consistently high-quality sleep
- Green tea contains small amounts of caffeine, which is known to disrupt sleep in certain individuals
- The study drew its participants from a range of different age groups and geographic regions
- The antioxidants found in green tea are present in even higher concentrations in several other beverages
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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?