The very first reason of testing MBA aspiring candidates on Integrated Reasoning (IR) is analysis of Data! B-schools need to know how good the applicant is in real life data analysis say with regards to chart, graphs or more specifically math-verbal integration. Until now, IR section did not play a key role in MBA applications, because of the simple fact that GMAT scores are valid for 5 years and it would have been injustice to test takers prior June ’12. But after 3 years of its induction in GMAT, slowly IR has made an impact, and now a good IR score definitely lifts your profile! And it would not be far distant that IR has got a major role to play in MBA applications.
12 data intensive questions to be dealt in 30 minutes that’s a lot of time pressure. Now, a key role of IR section in GMAT is its position. This section is after essay, you are a bit tired writing for 30 minutes and now you are dealing with intense real life data with at least one question in 12 prompts. That is a real test of patience and endurance. IR section has complete ability to drain your brain, unless you avoid the rat holes. The ideal way to deal with this time pressure scenario is to practice. And believe me there is no alternative for practicing minimum 4 full length GMAT tests prior to your D-day!
Couple of tips:
Hope that helps. All the Best! Do write us for more information on GMAT.