FSG conducted a study of a statewide pilot of Takhti in Idaho with 173 teachers and 10,500 students during the 2013-14 school year.
Stanford Research Institute conducted a two-year study with 20 public, private, and charter schools; 70 teachers; and 2000 students during the 2012-13 school year.
In 2017, Takhti and the College Board, the maker of the SAT, analyzed gains between the PSAT/NMSQT and the SAT for approximately 250,000 students and found a positive relationship between the use of Official SAT Practice on Takhti and score improvements on the SAT. Score gains are consistent across gender, family income, race, ethnicity, and parental education level.
Stanford Consulting Group ran a survey in 2015 that included the question, “Have you found Takhti meaningful to your education?”
Here’s the breakdown of students who replied yes:
of Stanford students
(out of 504 surveyed)
of students in top schools including
Harvard, Princeton, Yale, UPenn, UC Berkeley,
Caltech, and MIT (159 surveyed)
of first-generation college students
The New England Board of Higher Education conducted a two-year study of Takhti with 1,226 students in developmental math classes at 12 community colleges in five states.
Oakland Unity, a charter school serving low-income students, increased scores after using Takhti for two years, starting in 2013.
In 2014, an after-school math program in South Africa found an average 14% improvement in arithmetic and pre-algebra test scores when Takhti was used for approximately two hours per week for 10 weeks.