Bell Curves has provided test preparation to thousands of students.
Here is what just a few of them have to say.


  • Hanna

  • Chawane

  • Eric

  • Hanan

  • Nelo

More testimonials from Bell Curves students...

  • Enrolling with Bell Curves was absolutely one of the best choices I made regarding my business school applications.  I was able to raise my score from a 640 to a 710!  My instructor quickly and effectively determined my areas of weakness using Bell Curves’ innovative diagnostic tools. The Bell Curves curriculum is content-focused, which allowed me to truly understand the GMAT rather than try to game the system. If you want to maximize your return on investment, sign up with Bell Curves!

  • I had literally tried everything before working with Ajani. I self studied, took a class, and hired a tutor, all to no avail. Ajani was my lucky charm. After working with him, I got the score that I needed to get into Stern, Columbia, Booth, and Cornell...I even got scholarship money!!!!   Ajani is a gem and the Bell Curves method works!

  • After taking a full GMAT course + private tutoring with Hany ElDiwany in the fall, I have nothing but great things to say about Hany's teaching/tutoring skills!!! He's very patient, quickly targets weak areas and follows up with various on the spot drills and questions to shore up those weaknesses. Hany is great at creating his own questions and strengthening & weakening retired OG quant questions to reach someone at the level they're at. Very unique skill set I must say. In addition, Hany was always available to answer questions via email 24/7 ( even while he was on vacation). Overall I can't ask for better service than that. Great experience all around!!

  • The website is one of the greatest assets at Bell Curves, because it imitates the computer functionality of the exam, which was something that I struggled with. The Bell Curves staff is very encouraging and supportive throughout the GMATpreparation experience and really keeps you motivated. The small class sizes and the emphasis on learning question types rather than specific questions were especially useful and helped my score.

  • Thank you so much! I feel like I have a game plan. The ten pages I did on perms and combs from the Quant manual have laid out quite a simple and clear foundation, so I look forward to my GMAT challenge!

  • I'd like to sing praises to Akil, Bell Curves and most of all HASHIM! I know I was a difficult student, but your headaches were not in vain! So far I've been accepted to Darden, Fuqua, Stern and Tuck!!!

  • After not having a quantitative class in at least 7 years, the BC GMAT company and tutoring served me very well. It provided a comfortable environment where I could ask both simple and difficult questions. I not only received a basic refresher, but also study and test taking strategies. Now I have been accepted to 3 top 10 MBA programs!

  • Bell Curves has been more than just a GMAT prep company for me. Not only did I receive expert GMAT training that helped increase my score by 90 points, but I also received helpful insights into the overall MBA application process. These insights helped me establish a framework in which I was able to successfully be admitted into two of the top worldwide MBA programs.

  • Thank you so much for your visit today. Your presentation made it evident that our school needs to plan more effectively to incorporate strategies and awareness around the SAT and ACT. The helpful test taking strategies made our students realize they can achieve a higher score simply through familiarity with the test structure and scoring practices.  This workshop helped reduce test anxiety and gave students the information they need to strategically plan and set goals for attending the college of their choice. Your participation with our staff and students helped solidify the college going culture that we are trying to build at our school!

  • Bell Curves not only boosted my SAT scores, but also my confidence, by teaching me better ways to approach the test. The strategies I learned helped me immensely!

  • When you put them all together, 650+580+570=1810! YEAH! Thank you for putting up with my ridiculous schedule this summer and thanks for the classes and diagnostics and chance to better my grades!

  • After 3 years of off and on studying, I finally beat the GMAT with a 160-point improvement! The best decision I made over the course of those 3 years was hiring Ajani Burrell to be my tutor. He taught me the ins and outs of the GMAT, from how to attack Data Sufficiency questions to how to effectively read Sentence Correction and Critical Reasoning questions. Most importantly, Ajani helped me to adjust my ingrained approach to each type of question so that I would be most effective in understanding and correctly answering the question. Ajani is the man! For anyone that's willing to work, Ajani will be your greatest asset. I highly recommend him to anyone who wants a great tutor. Thank you Ajani! Thank you Bellcurves!

  • I would just like to thank Bell Curves and Yanni for all your help with the GMAT. Also, I wanted to inform you guys that I recieved my acceptance letter from the University of Minnesota Carlson School of Business.

  • I just wanted to say thank you for all your advice on how I should prepare for re-taking the GMAT. I found the Bell Curves information and drills to be wonderful, and together with the Official Guide I was able to raise my score 70 points to a 700! Thanks so much!

  • Well, today was finally the day, and...I SCORED 710!!   I want to thank Bell Curves. Though I continued to use other study books, features of the Bell Curves site definitely made me more prepared. The CAT tests helped show how CAT scoring works, the review section helped me work on problem areas, I would have missed at least one question if I hadn't memorized the powers suggested. I could go on and on about how it's just a great site altogether.   I especially want to thank you Joe. You were always willing to help me with the many questions that I sent, you helped me find questions to target my problem areas, and you were very encouraging at the times when I couldn't hide my stress. I truly thank you. I could almost swear that at a stressful time during the test, I heard your voice telling me I'd be fine.

  • My scores were a 650 in math, a 650 in critical reading, and a 710 in writing. And my combined score ended up being a 2010, so I ended up achieving my goal to break 2000. I found my tutor to be fun and engaging, at the same time teaching the skills that I needed to know in order to succeed.

  • Bell Curves personal tutoring not only fit my unpredictable schedule but it gave me the confidence I needed to reach my goal and score a 640 on the GMAT! Thanks to Bell Curves I was just admitted to the Tuck School of Business at Dartmouth.

  • I had pretty much given up on the GMAT after doing a full-length course and a few hours of tutoring with 2 other test prep companies. After bombing the GMAT my first time (500, Quant 27, < 20%), a tutor from one of the “top” test prep companies reasoned that math was not my forte and that I should focus solely on the verbal to increase my score. I soon realized that he was a waste of my time and money because not only was his advice crazy, we had no formal meeting place, so tutoring sessions at Starbucks weren’t really effective. Fast-forward to me walking into the BC office a total anxious wreck. I purchased tutoring hours and began working with Ajani, who, let me just say, is nothing short of amazing! After reviewing my work from just 1 practice test, he was able to identify my weaknesses and repeated mistakes. Ajani was super patient with me and never made me feel like the idiot I was making myself out to me. Even with my stupidest mistakes, he would find a takeaway point from it…AMAZING! The BC books and online material were also extremely helpful. From the books I learned new, but really simple and reliable ways to attack each question type. The online CAT quizzes and exams were the most realistic practice questions that I’ve seen. On my actual exam, for some of the questions, I was thinking, “oh…this is just like such and such question from the BC material.”One of my biggest hurdles was my fear of the exam; working with Ajani and practicing on my own with the BC material really helped overcome this fear and I walked into the exam feeling confident…for the most part. All in all, my BC experience was beyond worthwhile. I regret not starting my prep with them initially. I truly believe that I would not have been able to conquer the GMAT without them. Final score – 650…got the horrendous quant raw score up to 42.

  • The combination of peer pressure and what I felt were terribly low SAT scores made the difficult college admissions process worrisome for me. Luckily, I was introduced to the Bell Curves team and my worries quickly vanished. Comfort quickly replaced anxiety as I learned innovative strategies and techniques. As a result, my score jumped 230 points! Today I can proudly say that I attend George Washington University and would definitely recommend Bell Curves to any student looking to conquer the SAT!

  • You taught me SAT prep techniques last year, and I just wanted to tell you that I got into Columbia through early decision.  I really couldn't have done without the help from you and every other instructor who's been drilling the stuff in my head.  I actually scored a 700 in the math and and 2050 overall.

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