For more on IELTS visit www.ielts.org

Test of English A Foreign Language (TOEFL)
Test Of English A Foreign Language is a Standardized test that evaluates the English Proficiency of people whose native language is not English. Nearly 2400 education institutes in the United States and Canada require TOEFL scores from each applicant. The TOEFL tests the ability of the student to understand and speak English. It is administered as a Paper and Internet based test. Although a lot of schools look at your SAT score (the verbal section) as a good indicator of your language ability, you have to take the TOEFL.

For more on TOEFL visit www.ets.org

The Scholastic Aptitude Test Reasoning and Subjects Tests (SAT)
The SAT Reasoning Test (formerly known as the SAT I test) is a standardized test that measures the critical thinking skills you will need for academic success in college. It is a three-hour mainly multiple choice test divided into three sections - Critical Reading, Writing and Math. Almost all colleges in the US require your SAT score in order to evaluate your application.

The SAT Subject Tests (formerly known as the SAT II tests), are multiple choice tests that measure your knowledge in particular subjects. Some of the subjects tested are: Math, Biology, Physics, English Language Proficiency, History, etc. Some colleges require or recommend that you to take the SAT II subject tests if you are applying for specific programs related to the subject.

Collegeboard is the official administers of the SAT tests. They set the test, conduct the tests and send score reports to each college. Visit their web site www.collegeboard.com for detailed information on each of the tests, study tips and other important information regarding the tests.

Graduate Management Admission Test(GMAT)
The Graduate Management Admission Test, better known by its initialism GMAT is a standardized test for determining aptitude in business management studies, and has been administered by ACT, Inc. since January 2006, having taken over from Educational Testing Services (ETS). The GMAT is required by most accredited US and Canadian MBA programs and some non-US MBA programs (such as INSEAD & International Institute for Management Development).
Most MBA programs use the GMAT score as one of many criteria for admission. Although there is no clear-cut formula for admissions to business school, the importance of the GMAT score can not be overstated. For the top global schools, a fairly high score (at the very least in the upper 600s) is generally required for the prospective student's application to even receive serious consideration, while for other schools hoping to improve their rankings in the major publications (e.g. U.S. News, BusinessWeek, etc.), a higher score is generally enough to almost ensure admission, provided the candidate has performed reasonably well on the other admissions criteria.
Although a candidate's performance on the test will go a long way towards determining whether or not he or she is admitted to his or her school of choice, these other admissions criteria also play a pivotal role. The GMAT is one of many factors schools use when reviewing applications for admission; it is typically balanced with work experience, application essays, an interview, and, somewhat less important, college or university GPA.
As of April 22, 2006, the fee to take the Graduate Management Admission Test® (GMAT®) is U.S. $250 worldwide.

For more on GMAT visit www.mba.com

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Graduate Record Examination (GRE)
Unlike the SAT, the GRE is a computer-based test. It is a computer-adaptive test: while the number of questions in any given section is fixed, the difficulty and scoring value of those questions varies according to the previous responses provided by the test-taker. Rather than having a fixed point value, questions of varied difficulty are used in order to 'zero in' on the level of question that represents the upper bound of the test-taker's ability. Because of the way in which the score value changes over the course of the test, early questions are much more important in determining the final score than those that appear near the end of a section. Questions cannot be skipped or returned to.
The General Test consists of three graded sections and one research or experimental section that is not included in the reported score. Multiple-choice response sections are graded on a scale of 200-800, in 10 point increments. The writing section is graded on a scale of 0-6, in half- point increments. Sections may appear in any order on the test, with the exception of the Analytic Writing section, which always appears first.
One graded multiple-choice section is always a verbal section, consisting of analogies, antonyms, and reading comprehension passages. This section primarily tests vocabulary, and average scores in this section are substantially lower than those in the quantitative section.
The quantitative section, the other multiple-choice section, consists of problem solving and quantitative comparison questions that test high-school level math, including algebra and basic geometry. The problems in this section must be solved without a calculator. Average scores on the quantitative section are generally higher than those on the verbal section, though the material may present a challenge for students who have not studied mathematics since high school.
The analytical writing section requires the testee to write two short essays: one presenting their perspective on a statement, and the other analyzing and pointing out flaws in an argument. Each essay is scored by at least two readers on a six-point holistic scale. If the two scores are within one point, the average of the scores is taken. If the two scores differ by more than a point, a third reader examines the response.

For more on GRE visit www.ets.org