How to read the essay evaluation report

The numbers in the report represent values.

The e-grader will compare the values from your essays to Average Values, and see the difference:

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Chars per words: 5.04835589942 5.12650576532 98% => OK

Attributes: Chars per words

Values: 5.04835589942 (Chars per words from your essay)

AverageValues: 5.12650576532 (Average Values from all users, we call it AverageValues or ideal values)

Percentages(Values/AverageValues)%: 98% (compare values from your essays to average values)

Comments: OK (if the Percentages are not too high or too low, then OK)
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The e-grader will give warning messages if the Percentages are not too high or too low:
smog_index: 3.1 7.1628742515 43% => Smog_index is low.

if the warning messages come again in your other essays, it means it is an issue which needs your attentions.
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The e-grader will give a score according to the overall values.

We double checked your essays with same essay topic, but with different scores.

for those two essays:

http://www.testbig.com/independent-toefl-writing-essays/tpo-05-independ…
http://www.testbig.com/independent-toefl-writing-essays/tpo-05-independ…

you put the essay topic inside the essay body of one of the essays, so the score will be different.

for those two essays:
http://www.testbig.com/independent-toefl-writing-essays/tpo-01-independ…
http://www.testbig.com/independent-toefl-writing-essays/tpo-01-independ…

you changes few words in one of the essays, so the score got different.