The SAT Reasoning Test is a standardized test for college admissions in the United States. It is designed to evaluate the verbal, mathematical and reasoning skills of students, which are needed to complete the academic successfully.  Most undergraduate programs in the US require you to take the SAT, and many colleges and universities find SAT as a more credible test for predicting the student’s competence.

 The SAT is owned, published, and developed by the College Board, a non-profit organization in the United States, The current SAT Reasoning Test is administered in about four and one half hours

Every year around 2 million students take SAT , In 2005, the test was renamed as "SAT Reasoning Test" with possible scores from 600 to 2400 combining test results from three 800-point sections (math, critical reading, and writing), along with other subsections scored separately.

The SAT is classified into two:

The SAT Reasoning Test (formerly SAT I)

The SAT Subject Test (formerly SAT II)

Many universities also require SAT-II test score along with the SAT-I score for admission, for the specialized courses in Biology, Chemistry, Zoology, and Physics etc.   The new SAT I contain 3 sections- Critical Reading, Quantitative & Writing skills.

I. The Critical Reading  

Total Time: 70 Minutes
Score: 200-800
Sentence completions

It is intended to test the student's vocabulary and understanding of sentence structure and organization by requiring the student to select one or two words that best complete a given sentence.

Passage-based

The bulk of the Critical Reading questions is made up of questions regarding reading passages, in which students read short excerpts on social sciences, humanities, physical sciences, or personal narratives and answer questions based on the passage. Certain sections contain passages asking the student to compare two related passages; generally, these consist of shorter reading passages. The number of questions about each passage is proportional to the length of the passage.

II. Writing

Total Time: 60 minutes
Score: 200-800

The writing section will measure the test takers ability to organize and structure the essay, ability to express his/her opinion lucidly and language usage. This module has two sub sections

 1. Multiple choice questions:

The multiple choice questions include error identification questions, sentence improvement questions, and paragraph improvement questions. Error identification and sentence improvement questions test the student's knowledge of grammar, presenting an awkward or grammatically incorrect sentence; in the error identification section, the student must locate the word producing the source of the error or indicate that the sentence has no error, while the sentence improvement section requires the student to select an acceptable fix to the awkward sentence. The paragraph improvement questions test the student's understanding of logical organization of ideas, presenting a poorly written student essay and asking a series of questions as to what changes might be made to best improve it.

2. Essay writing

All essays must be in response to a given prompt. The prompts are broad and often philosophical and are designed to be accessible to students regardless of their educational and social backgrounds. For instance, test takers may be asked to expound on such ideas as their opinion on the value of work in human life or whether technological change also carries negative consequences to those who benefit from it. No particular essay structure is required, and the College Board accepts examples "taken from [the student's] reading, studies, experience, or observations." Two trained readers assign each essay a score between 1 and 6, where a score of 0 is reserved for essays that are blank, off-topic, non-English, not written with a Number 2 pencil, or considered illegible after several attempts at reading. The scores are summed to produce a final score from 2 to 12 (or 0). 

The mathematics section measures the number sense, computational skills, and basic math skills of the test taker. Questions are based on Number and operations; algebra and functions; geometry; statistics, probability, and data analysis etc.