Green tea has long been hailed as an excellent source of antioxidants, powerful anti-aging and immune-system boosting compounds. Many people therefore believe that the more cups they consume each day, the greater the benefits. Green tea, however, contains moderate amounts of caffeine, a stimulant that is not without side effects, including sleeplessness, irritability, and headaches. A long-term study has found that those who drink more than three cups of green tea a day are likely to have symptoms similar to those that chronic coffee drinkers, another source of caffeine, suffer. Therefore, it is important that anyone who chooses to drink green tea limit their intake to no more than two cups a day.
Write a response in which you discuss what specific evidence is needed to evaluate the argument and explain how the evidence would weaken or strengthen the argument.
In this argument, the author claims that drinking more than three cups a day of green tea will cause side effects on one's health. To support this argument, the author mentioned a study which seems persuasive. However, the author fails to elaborate on several aspects of the study to make the argument more convining.
Firstly, the arguer fails to provide exact and empirical evidence of the research about green tea. Gernerally speaking, to evaulate the side effects of green tea, a long-term and large sample size experiment is required, for example, an over ten-year experiment with more than thousand volunteers, including various ages, weights, races and genders. Since different people will react to green tea differently, the author has to prove that the side effects will affecting most of the people. Without a more convincing research result, it can be skeptical to draw the conclusion by the study mentioned in the argument.
Secondly, the speaker overlooks the probability that the side effects may not be caused by green tea. For instance, volunteers participated in the study drinks not only green tea but also coffee daily. In this case, the side effects might be caused by coffee. Moreover, it is also possible that volunteers who showed the symptoms were those who drank more than twenty cups a day. Meanwhile, those drank three cups a day enjoyed the positive effects of green tea. If this is the case, limiting three cups a day for all will not be appreciate. Therefore, it is better to discussion all the factors that may cause the side effects before drawing the conclusion.
Thirdly, the conclusion of the argument is too general as it ignores the differences between different people. Consider, for example, Chinese who are used to drink green tea by generations. The genes in these people may be suitable for drinking green tea, thus no side effects will occur. Moreover, because of the immune-system boosting and anti-aging effects of green tea, the Chinese who drink green tea for years are likely to live longer. The author has to rephase the conclusion to take various situations into account.
In sum, the author fails to provide convincing evidence for his argument in three aspects, namely lacking effective research results, overlooking other factors that may cause the side effects and failing to consider different race of people. To strengthen the argument, the speaker has to provide more evidence on the aspects discussed above.
Grammar and spelling errors:
Line 2, column 277, Rule ID: NODT_DOZEN[1]
Message: Use simply: 'a thousand'.
Suggestion: a thousand
...over ten-year experiment with more than thousand volunteers, including various ages, wei...
^^^^^^^^
Line 2, column 461, Rule ID: DID_BASEFORM[1]
Message: The verb 'will' requires the base form of the verb: 'affect'
Suggestion: affect
...has to prove that the side effects will affecting most of the people. Without a more conv...
^^^^^^^^^
Discourse Markers used:
['also', 'but', 'first', 'firstly', 'however', 'if', 'look', 'may', 'moreover', 'second', 'secondly', 'so', 'then', 'therefore', 'third', 'thirdly', 'thus', 'while', 'as to', 'for example', 'for instance']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.247807017544 0.25644967241 97% => OK
Verbs: 0.151315789474 0.15541462614 97% => OK
Adjectives: 0.0964912280702 0.0836205057962 115% => OK
Adverbs: 0.0482456140351 0.0520304965353 93% => OK
Pronouns: 0.0109649122807 0.0272364105082 40% => OK
Prepositions: 0.109649122807 0.125424944231 87% => OK
Participles: 0.0350877192982 0.0416121511921 84% => OK
Conjunctions: 2.62025687201 2.79052419416 94% => OK
Infinitives: 0.0372807017544 0.026700313972 140% => OK
Particles: 0.0 0.001811407834 0% => OK
Determiners: 0.120614035088 0.113004496875 107% => OK
Modal_auxiliary: 0.0241228070175 0.0255425247493 94% => OK
WH_determiners: 0.015350877193 0.0127820249294 120% => OK
Vocabulary words and sentences:
No of characters: 2464.0 2731.13054187 90% => OK
No of words: 405.0 446.07635468 91% => OK
Chars per words: 6.08395061728 6.12365571057 99% => OK
Fourth root words length: 4.48604634366 4.57801047555 98% => OK
words length more than 5 chars: 0.37037037037 0.378187486979 98% => OK
words length more than 6 chars: 0.311111111111 0.287650121315 108% => OK
words length more than 7 chars: 0.207407407407 0.208842608468 99% => OK
words length more than 8 chars: 0.130864197531 0.135150697306 97% => OK
Word Length SD: 2.62025687201 2.79052419416 94% => OK
Unique words: 185.0 207.018472906 89% => More unique words wanted.
Unique words percentage: 0.456790123457 0.469332199767 97% => OK
Word variations: 48.945976835 52.1807786196 94% => OK
How many sentences: 21.0 20.039408867 105% => OK
Sentence length: 19.2857142857 23.2022227129 83% => OK
Sentence length SD: 47.5661134359 57.7814097925 82% => OK
Chars per sentence: 117.333333333 141.986410481 83% => OK
Words per sentence: 19.2857142857 23.2022227129 83% => OK
Discourse Markers: 1.0 0.724660767414 138% => OK
Paragraphs: 5.0 5.14285714286 97% => OK
Language errors: 2.0 3.58251231527 56% => OK
Readability: 50.3968253968 51.9672348444 97% => OK
Elegance: 1.86458333333 1.8405768891 101% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.405893817586 0.441005458295 92% => OK
Sentence sentence coherence: 0.142016679027 0.135418324435 105% => OK
Sentence sentence coherence SD: 0.0700796879982 0.0829849096947 84% => OK
Sentence paragraph coherence: 0.577699745288 0.58762219726 98% => OK
Sentence paragraph coherence SD: 0.114428382936 0.147661913831 77% => OK
Sentence topic coherence: 0.18096816376 0.193483328276 94% => OK
Sentence topic coherence SD: 0.0746413435664 0.0970749176394 77% => OK
Paragraph paragraph coherence: 0.458377725654 0.42659136922 107% => OK
Paragraph paragraph coherence SD: 0.0376191136621 0.0774707102158 49% => OK
Paragraph topic coherence: 0.286931337827 0.312017818177 92% => OK
Paragraph topic coherence SD: 0.0660308916833 0.0698173142475 95% => OK
Task Achievement:
Sentences with positive sentiment : 3.0 8.33743842365 36% => OK
Sentences with negative sentiment : 10.0 6.87684729064 145% => OK
Sentences with neutral sentiment: 8.0 4.82512315271 166% => OK
Positive topic words: 2.0 6.46551724138 31% => OK
Negative topic words: 9.0 5.36822660099 168% => OK
Neutral topic words: 7.0 2.82389162562 248% => OK
Total topic words: 18.0 14.657635468 123% => OK
What are sentences with positive/Negative/neutral sentiment?
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Rates: 58.33 out of 100
Scores by essay e-grader: 3.5 Out of 6 -- The score is based on the average performance of 20,000 argument essays. This e-grader is not smart enough to check on arguments.
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Note: This is not the final score. The e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.