The researchers focused on two variables: the minutes candidates spent on Khan Academy practice activities, and the number of practice exams candidates took. Roughly half of the students in the study sample did not complete a full Khan Academy practice exam, and the researchers said further research is needed to understand how to better engage students on the platform. This yielded a sample of 12,471 candidates whose usage of the Khan Academy and performance on the LSAT were analyzed. In looking at a period from June 2018 (when Khan Academy’s LSAT prep tool was launched) to July 2020, Dustman, Gallagher, and Camilli matched Khan Academy usage information with data from LSAT test takers who indicated they used Khan Academy for the test and gave LSAC permission to use their data for research purposes. However, LSAC researchers Kimberly Dustman, Ann Gallagher, and Gregory Camilli wrote that “engagement with the Khan Academy platform is currently the best explanation for the LSAT score increases observed in this study.”

The researchers cautioned that Khan Academy practice activities could not yet be declared the sole cause of LSAT score increases, due to the “quasi-experimental” nature of the research. The more time law school candidates spent preparing for the Law School Admission Test via Khan Academy’s free online LSAT preparation tools, and the more practice exams those candidates completed on the Khan Academy platform, the higher the candidates tended to score on the LSAT, according to a recently completed Law School Admission Council study that supports the value of this online resource for LSAT takers.

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