For a more reliable measure of fluency and comprehension, PTB calculates the change from Pretest to Posttest scores, achieved by students who complete the PTB Big Exam Prep Workshop.

Between Spring 2019 and Fall 2023, students who completed the PTB Big Exam Prep Workshop saw their scores increase by an average of 25% (BCBA® exam passing score is 76%). The distribution of questions on the Pretest and Posttest corresponds to the 5th Edition Task List, and is proportional to the actual BCBA® exam.

PTB releases updated scores on an annual calendar basis. For a detailed view of the data, click here.