The study evaluated the convergent validity of the PEAK-E-PA and two common assessments of language development used in educational and clinical settings: the ABLLS-R and the TOLD-I:4. The PEAK-E-PA provides a measure of a participant's ability to derive arbitrary stimulus relations, and may therefore provide a more complex analysis of language…

To ensure the quality of training, skills developed and maintained, and expected standards for behavior analysts, several systems have been put into place across the years. Of these systems, perhaps the most widespread was the development of the Behavior Analyst Certification Board in 1998. Once all requirements are met, the final determinative…