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.
The conclusion made by the argument suggests people limit green tea intake to no more than two cups a day. The author concludes the above statement based on a study that claims that people intaking more than three cups a day of green tea will have symptoms similar to those found in the chronic coffee drinkers. This conclusion, however, depends on several unstated assumptions that are scrutinized below.
First of all, the author assumes that the study results are applicable to all the people which is not true since the study only claims that the occurrence of symptoms is just a possibility. What if certain people have different reaction potentials to the green tea intake amount? What if certain people are completely resistant to the side effects of the green tea but are in a dire need of its other effects which are claimed to be healthy. These questions based on the assumption made by the author weakens the argument.
Again the author fails to mention the exact concentration of the principle ingredient that is the green tea itself in the drink. If anyone makes a drink with lesser concentration of green tea in it compared to the concentration of green tea used in the study, then instead of two cups, the person can drink three cups of his drink leading to the same results. This casts doubt on the conclusion that why the figure "two cups" has been mentioned by the author in his conclusion.
Finally, the author also fails to take into account the fact that all the cups need not necessarily be of the same size. What if the study results are based on cups of relatively smaller size with respect to the cups which the author is mentioning. If this is true, then the conclusion drawn by the author is undoubtedly false.
The argument, as it stands now, is considerably flawed due to its dependence on several unwarranted assumptions stated above. If the author is able to justify these assumptions, then the validity of his conclusion can be assured.
Comments
e-rater score report
Attribute Value Ideal
Final score: 3.5 out of 6
Category: Satisfactory Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 0 2
No. of Sentences: 15 15
No. of Words: 343 350
No. of Characters: 1595 1500
No. of Different Words: 149 200
Fourth Root of Number of Words: 4.304 4.7
Average Word Length: 4.65 4.6
Word Length SD: 2.551 2.4
No. of Words greater than 5 chars: 100 100
No. of Words greater than 6 chars: 72 80
No. of Words greater than 7 chars: 46 40
No. of Words greater than 8 chars: 34 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 22.867 21.0
Sentence Length SD: 8.913 7.5
Use of Discourse Markers (%): 0.6 0.12
Sentence-Text Coherence: 0.381 0.35
Sentence-Para Coherence: 0.62 0.50
Sentence-Sentence Coherence: 0.112 0.07
Number of Paragraphs: 5 5
Transition Words or Phrases used:
also, but, finally, first, however, if, so, then, first of all, with respect to
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 18.0 19.6327345309 92% => OK
Auxiliary verbs: 5.0 12.9520958084 39% => OK
Conjunction : 1.0 11.1786427146 9% => More conjunction wanted.
Relative clauses : 11.0 13.6137724551 81% => OK
Pronoun: 22.0 28.8173652695 76% => OK
Preposition: 49.0 55.5748502994 88% => OK
Nominalization: 12.0 16.3942115768 73% => OK
Performance on vocabulary words:
No of characters: 1648.0 2260.96107784 73% => OK
No of words: 343.0 441.139720559 78% => More content wanted.
Chars per words: 4.80466472303 5.12650576532 94% => OK
Fourth root words length: 4.30351707066 4.56307096286 94% => OK
Word Length SD: 2.64018919495 2.78398813304 95% => OK
Unique words: 161.0 204.123752495 79% => More unique words wanted.
Unique words percentage: 0.469387755102 0.468620217663 100% => OK
syllable_count: 505.8 705.55239521 72% => OK
avg_syllables_per_word: 1.5 1.59920159681 94% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 4.96107784431 60% => OK
Article: 6.0 8.76447105788 68% => OK
Subordination: 4.0 2.70958083832 148% => OK
Conjunction: 0.0 1.67365269461 0% => OK
Preposition: 0.0 4.22255489022 0% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 15.0 19.7664670659 76% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 22.0 22.8473053892 96% => OK
Sentence length SD: 44.4352212652 57.8364921388 77% => OK
Chars per sentence: 109.866666667 119.503703932 92% => OK
Words per sentence: 22.8666666667 23.324526521 98% => OK
Discourse Markers: 5.26666666667 5.70786347227 92% => OK
Paragraphs: 5.0 5.15768463074 97% => OK
Language errors: 0.0 5.25449101796 0% => OK
Sentences with positive sentiment : 5.0 8.20758483034 61% => OK
Sentences with negative sentiment : 7.0 6.88822355289 102% => OK
Sentences with neutral sentiment: 3.0 4.67664670659 64% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.180890780801 0.218282227539 83% => OK
Sentence topic coherence: 0.0651776985074 0.0743258471296 88% => OK
Sentence topic coherence SD: 0.0678995354719 0.0701772020484 97% => OK
Paragraph topic coherence: 0.0989632211176 0.128457276422 77% => OK
Paragraph topic coherence SD: 0.0721835054984 0.0628817314937 115% => OK
Essay readability:
automated_readability_index: 12.6 14.3799401198 88% => Automated_readability_index is low.
flesch_reading_ease: 57.61 48.3550499002 119% => OK
smog_index: 3.1 7.1628742515 43% => Smog_index is low.
flesch_kincaid_grade: 10.7 12.197005988 88% => OK
coleman_liau_index: 10.86 12.5979740519 86% => OK
dale_chall_readability_score: 7.95 8.32208582834 96% => OK
difficult_words: 70.0 98.500998004 71% => More difficult words wanted.
linsear_write_formula: 13.5 12.3882235529 109% => OK
gunning_fog: 10.8 11.1389221557 97% => OK
text_standard: 11.0 11.9071856287 92% => OK
What are above readability scores?
---------------------
Rates: 50.0 out of 100
Scores by essay e-grader: 3.0 Out of 6
---------------------
Note: 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.