Blackouts

             1. Blackouts common, causes numerous, by Anita Srikameswaran
             2. The hypothesis would be; Blackouts are caused by vasovagal reflex
             (what happens when a needle needs to be inserted into the skin to draw blood).
             3. The independent variable would be the vasovagal reflex.
             4. The dependent variable would be the percentage of blackouts caused
             by vasovagal reflex the independent variable.
             5. This article has many control groups: Seizures which is caused by
             overactivity of neurons in the brain. Hypoglycemia which is low blood sugar.
             6. The Population is to people that have blackouts, seizures, or have low
             blood sugar and heart irregularities.
             7. The sample is the people with problems of blackouts, which is sixty
             percent. Twenty percent is caused cardiac problems, the other twenty percent of
             the time the doctors fail to find any causes.
             8. The article did not provide this information
             9. The article cannot be answered due to question 8
             10. The instrument used from the dependent variable would be an EKG,
             electrocardiogram, to check the heart for rhythm problems.
             11. In this article there were no charts, graphs, or tables used. Sixty
             percent of blackouts are caused by vasovagal reflex.
             12. The hypothesis was confirmed.
             13. To improve this article and make it more accurate, you could conduct
             more experiments (tests) with more people who blackout, have seizures, sleep
             apnea, people with hypoglycemia and do these tests more than once. Also,
             conducts these tests with people who do not blackout or have never had any
             episodes of fainting spells to see their condition of their heart. The people could
             be babies, teenagers, children, young adults, older adults, and those with
             fainting spells. Ways to improve the accuracy of the results would be to have a
             majority of diverse people with good and bad heart problems.
             ...

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