Logical Reasoning

PT130 · S4 · Q20 A recent study confirmed

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A recent study confirmed that salt intake tends to increase blood pressure and found that, as a result, people with high blood pressure who significantly cut their salt intake during the study had lower blood pressure by the end of the study.

Apparent Paradox

A recent study confirmed that salt intake tends to increase blood pressure and found that, as a result, people with high blood pressure who significantly cut their salt intake during the study had lower blood pressure by the end of the study.

However, it was also found that some people who had very high salt intake both before and throughout the study maintained very low blood pressure.

Evaluate

Why would some people who had a very high salt intake have very low blood pressure? Maybe the people with very low pressure can eat a very high salt intake without it increasing their blood pressure.

20.

Which one of the following, if true, contributes the most to an explanation of the results of the study?

  1. Study participants with high blood

    Out of Scope

    The people that need explanation had low blood pressure throughout the study, while these people had very high blood pressure.

    1% picked this

  2. Salt intake is only one

    Out of Scope

    The people that need explanation had low blood pressure throughout the study, while these people had very high blood pressure.

    22% picked this

  3. For most people who have

    Out of Scope

    The people that need explanation had low blood pressure throughout the study, while these people had very high blood pressure.

    3% picked this

  4. At the beginning of the

    Out of Scope

    The people that need explanation had low blood pressure throughout the study, while these people had very high blood pressure.

    2% picked this

  5. Correct

    Persons suffering from abnormally low

    Why this is right

    This explains why some people with very low blood pressure may need to have a very high salt intake.

    Skill tested: Paradox · how this choice captures the argument's function is the move to repeat next time.

    71% picked this

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