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How GMAT Scoring Algorithm Works?

GMAT AlgorithmThe GMAT is a computer-adaptive test where your score is calculated by an algorithm that provides you with harder questions (and higher score returns) when you answer previous questions correctly, and with easier questions (and lower returns) when you’ve answered previous questions incorrectly.

Through this method, the GMAT can determine your ability level in a relatively short period – 37 math and 41 verbal questions – and provide you with an immediate score upon completion of the test. To save you the stress of trying to figure out the secrets of the algorithm, here are some important things you should know about GMAT scoring:


1) Good news: You can get a lot of questions wrong and still do well!

The job of the GMAT scoring algorithm is to determine your ability level by asking you questions that begin to close in on it. Think of how you’d play a game of 20 Questions as you attempt to zero in on the historical figure that your “opponent” has selected:

Was this person famous in the era BC? (No – too early)

Was this person famous before the Middle Ages? (No – still too early)

Was this person famous before the Declaration of Independence? (Yes – 1776 is too late)

Was this person famous before 1600? (Yes – 1600 is still too late)

Did this person become famous before 1500? (Yes – now we’re getting close to that period between around 1300-1500)

Was this person famous in the late 1400s? (Yes – now we’re getting close to really knowing the answer)

Was this person famous for something that happened in the 1490s? (Yes)

Is it Christopher Columbus in 1492? (Yes – once you get to the 1490s, you can be pretty sure that you are talking Columbus. We’ve managed to narrow down our assessment of the figure in question by getting some “yes” and “no” answers)

Essentially, that’s what the GMAT is trying to do with the questions it feeds you. “Is this person above a 700? Yes.” “Is this person above a 750? No.” Because the test needs to get those “no” answers at the upper limit of your ability, it will continue to feed you harder questions that you will likely answer incorrectly as it tests your upper threshold, and at the lower end it will feed you easier questions to test your minimum ability.

The upshot for you? You’re supposed to answer a fair number of questions incorrectly. Everyone does. People scoring in the 46-50 scaled score range on the quant section (the upper limit of high scores) answered between 21 and 26 of the 37 math questions correctly. You can score well above the 90th percentile on math and miss more than a dozen questions!

2) The first ten questions are no more important than the last ten.

The Graduate Management Admissions Council goes as far as to spell this out clearly in the Official Guide for GMAT Review and on its blog, but the rumors still persist. Let’s go back to the game of 20 questions; if it’s that easy for you or I to correctly guess “Christopher Columbus” in just 20 questions, why does the GMAT need 37 or 41 to determine your score? After all, GMAC is run by a sophisticated team of statisticians and psychometricians.

The answer?

The GMAT needs to account for false positives and false negatives. In a game of 20 questions, it’s in unbelievably poor form to lie about the answer to a question, but on the GMAT you’ll “lie” about your ability whenever you guess correctly or make a silly mistake and answer incorrectly. The test needs to account for that, and so more questions are needed.

Going back to Columbus, say that the 20 questions proprietor had forgotten that catchy rhyme “In 1492 Columbus sailed the ocean blue”, and tried to estimate your line of time-sensitive questioning by thinking “Jamestown was in the early 1600s, so Columbus must have reached the Americas in the 1500s.” He’d have answered your question “before 1500?” as “no”. But your subsequent questions – “was he an explorer/sponsored by the Spanish crown/etc.” – would eventually bear out that the answer to the pre-1500 question was false.

The GMAT knows that you’ll have some false positives/negatives in your answers, and accordingly it is equipped to filter through those. And, it can’t make any major decisions about your ability level that early in the test. If you’re taking the GMAT soon, hopefully you’re studying probability concepts thoroughly enough to recognize this – 1 out of every 525 test-takers who guesses blindly on the first four questions will get them all right. With well over 200,000 GMATs taken per year, the overseers of the test know that they’ll see quite a few tests that include sets of 3-4 consecutive correct guesses, and the algorithm is set up to mitigate those and accurately reflect your scores.

3) Knowing how the scoring algorithm works neither significantly impacts your score nor excuses you from having to answer questions correctly!

Of the time that most examinees spend preparing for the GMAT, among the least-value-added is the time beyond that first 20 minutes that they spend thinking about the scoring algorithm. Consider this quote from Dr. Eileen Talento-Miller, one of the chief psychometricians behind the GMAT, in her blog post about guessing on the exam:

“And because no one knows what item you would have gotten next if you don’t complete the items at the end, then there is no good way to estimate how that would affect your score.”

If the creators of the exam are willing to admit that they’re unsure how they’d game the test, it’s unlikely that you’ll somehow crack the code on your own. The psychometricians at GMAC are tasked by business schools with, above all else, the job of ensuring that the test is a valid assessment of a student’s performance.

You can spend your time much more effectively by preparing to succeed than by trying to fully understand the nuances of how you’ll be assessed. Ultimately, you should trust that the scoring system will accurately value your performance, and that the only thing you can control is that performance itself.

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About the Author 

Atul Jose - Founding Consultant F1GMAT

I am Atul Jose - the Founding Consultant at F1GMAT.

Over the past 15 years, I have helped MBA applicants gain admissions to Harvard, Stanford, Wharton, MIT, Chicago Booth, Kellogg, Columbia, Haas, Yale, NYU Stern, Ross, Duke Fuqua, Darden, Tuck, IMD, London Business School, INSEAD, IE, IESE, HEC Paris, McCombs, Tepper, and schools in the top 30 global MBA ranking. 

I offer end-to-end Admissions Consulting and editing services – Career Planning, Application Essay Editing & Review, Recommendation Letter Editing, Interview Prep, assistance in finding funds and Scholarship Essay & Cover letter editing. See my Full Bio.

Contact me for support in school selection, career planning, essay strategy, narrative advice, essay editing, interview preparation, scholarship essay editing and guiding supervisors with recommendation letter guideline documents

I am also the Author of the Winning MBA Essay Guide, covering 16+ top MBA programs with 240+ Sample Essays that I have updated every year since 2013 (11+ years. Phew!!)

I am an Admissions consultant who writes and edits Essays every year. And it is not easy to write good essays. 

Contact me for any questions about MBA or Master's application. I would be happy to answer them all 

Winning MBA Essay Guide - A Complete Guide for M7 and Top 15 MBA Application Essays 


F1GMAT's Winning MBA Essay guide will teach you how to transform your essay into a life journey with trials and tribulations that will move the admission team.

+ Over 245 Sample Essays (Read Previews of F1GMAT's Winning MBA Essay Guide Sample Essays here)

+ Top 15 MBA Programs (Harvard, Stanford, Wharton, Columbia, Booth, MIT, Kellogg, Yale, Haas, Darden, INSEAD, LBS, NYU Stern, Tuck, Duke Fuqua, Ross)
+ The Art of Storytelling 
+ Leadership Narratives
+ Review Tips
+ Persuasion Strategies
+ The Secret to "unleashing" your unique voice
+ How to prepare and present for the Video Essay
+ How to write about your Strengths
+ How to write about your Weaknesses
 
 

Want to try the individual school Essay Guides before upgrading to the Winning MBA Essay Guide? Try below.

F1GMAT's Essay Guides

  • Harvard MBA Essay Guide (20 Sample Essays)

    Growth-Oriented Essay: Curiosity can be seen in many ways. Please share an example of how you have demonstrated curiosity and how that has influenced your growth. (up to 250 words) 

    Example #1: Persistence Narrative 
    Background Information: The applicant – a design and music talent, shares her journey through several setbacks. She attributes curiosity to her growth.  
    Curiosity: Philosophy  
    Curiosity (Explained): Curiosity as a philosophy is tough to translate into a narrative unless you are from the creative industry or your contributions had an influence on a solution or an initiative.  
    MBA Essay Strategy: I wanted to capture the humanity of the applicant and her influence in music instead of just highlighting how she overcame multiple roadblocks to gain attention as a designer.  
    Theme: Persistence  
    Read: Harvard MBA Curiosity Essay – Life Starts at NO (Growth-Oriented HBS MBA Essay Example) 

    Example #2: International Community Building 
    Background Information: The applicant, a Machine Learning (ML) entrepreneur specializing in healthcare diagnostics, shares how his curiosity to learn other ML algorithms’ evolution in diagnosing Alzheimer’s, cancer, and heart disease transformed his platform into a global community. 
    MBA Essay Strategy: I wanted to show the applicant’s contributions in diagnostic from 2020 to 2024 by citing two events. Such examples build credibility instead of engagements that were recent. The evolution of the platform from an AI development community to a community for discussing the application of AI in diagnostics is captured through a ‘curiosity’ angle.
    Read: Harvard MBA Curiosity Essay – Growth through Collaboration (AI in Healthcare) (Growth-Oriented HBS MBA Essay Example)

    Example #3: Culture
    Background Information: The applicant, an Entrepreneur from India narrates his first entrepreneurial experience – facilitating exchange of stamps in the late 1990s.
    Theme: Culture
    MBA Essay Strategy:  Instead of addressing the biases in the investor community that could turn preachy, I wanted to focus on the applicant and his entrepreneurial journey by citing two entrepreneurial experiences – a platform(club) for stamp collection and his Grocery delivery App.
    Read: Harvard MBA Curiosity Essay – The American Dream (Growth-Oriented HBS MBA Essay Example)

    Example #4: Addiction
    Background Information: The applicant – a beneficiary of the foster home system, captures the sacrifice his adopted grandparents made to save him from a path of addiction. Paying it back through early intervention among teenagers and community engagement is the curiosity narrative.
    Theme: Addiction
    MBA Essay Strategy:  My strategy is to capture a gratitude narrative in the first one-third of the essay to demonstrate motivation for starting the venture and dedicate the latter part of the essay to the unique solution
    Read: Harvard MBA Curiosity Essay – Drug Addiction and Gaming (Growth-Oriented HBS MBA Essay Example)

    Example #5: Scarcity
    Background Information: The applicant, an education major, recognizes that 70% of all students in Kenya don’t have a computer. The curiosity that drives him to pivot from one solution to another is the growth narrative.
    Theme: Innovation
    MBA Essay Strategy:  Often, innovation is captured with a ‘hero’ narrative where the applicant is the sole originator of an idea. I wanted to break that cliché and include a person from whom the applicant learned to use a concept called ‘scaffolding.’
    Read: Harvard MBA Curiosity Essay – Scarcity (Growth-Oriented HBS Essay Example)

    Example #6: FinTech
    Background Information: The applicant captures a vulnerable moment of a beneficiary to compare his journey of side hustle before a technology giant noticed his talent. Although cryptocurrency is not a flavor for the year, capture niches where innovation is still happening. 
    Theme: Education, Child Welfare
    MBA Essay Strategy:  Empathizing with a techno solution is tough without a strong backstory around the beneficiary. For the essay, I wanted to clearly establish the beneficiary – Rami, before the applicant narrates the similarities to his journey and finally shares the solution that emerged from his curiosity.
    Read: Harvard MBA Curiosity Essay – FinTech as a Tool for Good (Growth-Oriented HBS MBA Essay Example)

    Example #7: Learning from the best
    Background Information: The applicant – a Remote Engineer in the Oil and Gas industry, reflects on a value that has helped her learn from the best regardless of her geographical limitations.
    Theme: Learning
    MBA Essay Strategy:  The effectiveness of the case-study method depends on the assumption that peers in a Harvard MBA class will help elevate your learning experience. For the essay, I have highlighted the applicant’s recognition of this value proposition with three examples.
    Read: Harvard MBA Curiosity Essay – Learning from the Best (Growth-Oriented HBS MBA Essay Example)

    Example #8: Military & Search for IMPACT
    Background Information: The most common narrative for US military applicants is to quote 9/11 and the reaction your immediate family had while watching the events unfold. The horrifying moment is captured as a motivation to join the Military. On digging deeper, most applicants would share that their motivations were diverse.
    Theme: Career Choice
    MBA Essay Strategy:  I wanted to quickly highlight that the applicant had the choice of entering any industry. One achievement to demonstrate his curiosity that I shared in the first half is the invention of a game. Since the game is mentioned in the resume and verifiable through search, I didn’t quote the name. By clearly highlighting the person’s curiosity and career options, the family legacy is used as a factor in joining the military.
    Read: Harvard MBA Curiosity Essay – Career Choice after a Military Career (Growth-Oriented HBS MBA Essay Example)
     
    Leadership-Focused Essay: What experiences have shaped who you are, how you invest in others, and what kind of leader you want to become? (up to 250 words)

    Example #9: Small Business Values
    Background Information: The applicant - a second-generation Asian American, is familiar with the values of fiscal conservatism, building relationships, and understanding the daily struggles of the community through his family’s department store.
    Theme: Customer-Centric
    MBA Essay Strategy:  The applicant’s role in developing an App for the store is highlighted in the essay at a crucial part of the narrative so that the essay is not all about his father. I have also humanized the journey – by sharing how upset the father was when the revenues fell by 40%. The essay is about the transformation in the applicant’s value from a person chasing productivity and optimization technique to someone who is truly thinking about the customers. 
    Read: Harvard MBA Leadership Essay – Small Business Values (Leadership-Focused HBS MBA Essay Example)

    Example #10: Breaking Away from Family Business
    Background Information: A unique challenge that applicants whose parents are public figures or CXOs of businesses or entrepreneurs are the pressure to live up to the parent’s standards or milestones. For the leadership narrative, the burden of legacy is established before the narrative addresses his leadership principles.
    Theme: Authenticity  
    MBA Essay Strategy:  For the essay, I want to capture an entrepreneur’s journey to rise above his entrepreneur father’s image. But I didn’t want to make the entire essay about this complex dynamics. The narrative is around the applicant’s focus on customers and surrounding with teams who keeps him grounded. 
    Read: Harvard MBA Leadership Essay – Breaking Away from Family Business(Leadership-Focused HBS MBA Essay Example)

    Example #11: Creativity and Communication 
    Background Information: When the overall percentage of users with internet access is 62% in South Africa and the inequality accentuated by the rural and urban divide, the applicant endured the lack of digital infrastructure, and spending close to 22% of the family income on gaining relevant information on schools, global exams, and financial assistance. 
    Theme: Creativity, Communication
    MBA Essay Strategy:  The strategy is to share why the applicant values no distraction in a child’s home for optimum education experience. Then I highlight the many roadblocks the applicant’s non-profit faced in receiving fee waiver for their cooperative run ISP.
    Read: Harvard MBA Leadership Essay – Non-Profit (Telecom) (Leadership-Focused HBS MBA Essay Example)

    Example #12: Mental Health
    Background Information: The applicant like most didn’t pay much attention to the mental health epidemic until tragedy hit home.
    Theme: Communication, Innovation
    MBA Essay Strategy:  A question we frequently get from applicants is whether they should cite tragedy in the family as a motivation for a venture or a non-profit initiative. As long as you don’t linger too much on the tragedy and offer a balanced narrative, there are no restrictions on leveraging unique stories from your life. 
    Read: Harvard MBA Leadership Essay – Mental Health (Leadership-Focused HBS MBA Essay Example)

    Example #13: Trauma, Healing & Finding Authentic Self
    Background Information: The applicant narrates the absurdity of war in the narrative about the duties in Kabul, and the trauma. Instead of wallowing in on the horror, the applicant takes what makes military applicants strong and guides unprivileged children build life and leadership skills.
    Theme: Resilience
    MBA Essay Strategy:  Capturing PTSD in an essay, the healing process, and the cues that helped the applicant are too sacred to be shared in a Harvard MBA application essay. However, with the right motivation and narrative arcs, you can capture the essence of your journey without sharing the darkest secrets. That is what I did by merging two stories – the horrors of the war with a non-profit engagement.
    Read: Harvard MBA Leadership Essay – Military & PTSD (Leadership-Focused HBS MBA Essay Example)

    Example #14: Addiction, Setback and Leadership Mantra
    Background Information: In this narrative, the applicant captures Peru’s Silver mining boom of 2006. The growth experienced in her father’s business shifted the family’s economic status to a new stratosphere. Through the changing economic and family dynamics, the applicant finds her voice in a unique way, initially to record her unheard voice but later as one of the youngest subject matter experts in mining and commodities.  
    Theme: Failure
    MBA Essay Strategy:  For the essay, the strategy is to show how life’s unpredictability is a blessing. By narrating two setback events, the essay demonstrates the applicant’s resilience and her acknowledgment of people who made a comeback possible.
    Read: Harvard MBA Leadership Essay – Addiction, Setback and Leadership Mantra (Leadership-Focused HBS MBA Essay Example)

    Example #15: War, Immigration and Starting Over Again
    Background Information: Despite a raging war in Syria, the family of the applicant was unblemished by the chaos. The strategic government assets near the applicant’s house would have made the region an easy target, but it was not. The calmness of her journey is shattered in one event. From the privileges of a cocooned life, the applicant is forced to think about survival, her sister’s future, and her future in the US. The second half of the narrative captures the change that was forced on her. 
    Theme: Gratitude, Resilience
    MBA Essay Strategy:  I consciously chose not to start the essay with a dialogue or trauma. Two lines are allocated to set up the narrative before the trauma event.
    Read: Harvard MBA Leadership Essay – War, Immigration and Starting Over Again (Leadership-Focused HBS MBA Essay Example)

    Harvard MBA Business-Minded Essay: Please reflect on how your experiences have influenced your career choices and aspirations and the impact you will have on the businesses, organizations, and communities you plan to serve. (up to 300 words)

    Example #16: Creative or Finance
    Background Information: The applicant starts the narrative with the origin of her talents. The unbridled enthusiasm receives a reality check when in high school, the applicant’s father has a conversation with her about academics. While the applicant picked up her quant skills, she was reaching over 50,000 loyal fans, and her videos captured 1 million views. 
    Theme: Passion, Talent
    MBA Essay Strategy:  Capturing vulnerability is the toughest part for Harvard MBA applicants. For this essay example, I have captured the applicant’s uncertainty about career choice throughout the essay. Here the goal is to show vulnerability in the career choice essay while for leadership and growth essay, I could capture one example each from creative and PE industry respectively to balance the narrative. So don’t follow this example without a strategy.  
    Read: Harvard MBA Business-Minded Essay – Creative or Finance (Business-Minded HBS MBA Essay Example)

  • Stanford MBA Essay Guide (24 Sample Essays)
  • Columbia MBA Essay Guide (21 Sample Essays)
  • Wharton MBA Essay Guide (15 Sample Essays)
  • INSEAD MBA Essay Guide (19 Sample Essays)
  • Darden MBA Essay Guide  (21 Sample Essays) 
  • Yale SOM MBA Essay Guide (15 Sample Essays)
  • Tuck MBA Essay Guide (15 Sample Essays)
  • Haas MBA Essay Guide (18 Sample Essays)
  • NYU Stern MBA Essay Guide (15 Sample Essays + 6 Examples - Visual Essay)
  • LBS MBA Essay Guide (6 Sample Essays)
  • MIT Sloan MBA Essay Guide (6 Sample Cover Letters + 3 Sample Video Statement Scripts + 3 Sample Optional Essays)
  • Kellogg MBA Essay Guide (11 Sample Essays)
  • Chicago Booth MBA Essay Guide (12 Sample Essays)
  • Ross MBA Essay Guide (31 Sample Essays)
  • Duke Fuqua MBA Essay Guide (10 Sample Essays + Two 25 Random Things Samples)
  • Cambridge MBA Essay Guide (12 Sample Essays)

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