The GMAT is sponsored by the American Testing Center (ETS) in Princeton, New Jersey, and entrusted by the American Graduate Entrance Examination Board (GMAC). The organizer of China is China International Examination Coordination Office (CIECB).
Analytical writing (AWA) is to examine your dialectical thinking ability and your ability to express opinions. Based on a given argument, you should analyze the reasoning and assumptions behind the argument, and then critically evaluate the validity of the argument.
The text logical reasoning part of GMAT test adopts multiple-choice method to measure your ability to read and understand written materials, check reasoning arguments, and correct written materials to make them conform to standard written English norms.