I heard that if you take TOEFL exam several time your score will never decrease. Is it correct?
It seems rational, if TOEFL is a standard test, its difficulty level should be equal in all exams. For example if in your first try you get 28 in reading and it shows your good skill in reading, it's not rational that ETS assign a lower score in successive exams.
I took exam for second time after ten days of my first attempt. I feel the reading section was harder than my previous exam. If TOEFL is a normalized exam, its evaluation of my skill in reading should not be decreased in such short period.