About Challenge Point

Challenge Point is a software tool that is used to present /r/ stimuli to participants, using an adaptive method of target selection. Users are presented with stimuli based on the specific /r/ variants that they select. The program modifies the level of complexity based on the participant’s performance, in order to provide the optimal level of difficulty. The program offers a number of settings that can be selected based on the objectives of a particular session, including mode, order, and complexity of stimuli.

License
Challenge Point is available free-of-charge, under the MIT software license and with attribution to the authors using the following citation:

Ortiz, J.O., Hitchcock, E.R., McAllister, T. (2020). Challenge Point [Computer software]. Retrieved from http://cpp.umd.edu/

Publications
McAllister, T., Hitchcock, E., & Ortiz, J. A. (2019). Computer-assisted challenge point intervention for residual speech errors. https://doi.org/10.17605/OSF.IO/95ASZ

Authors

José Ortiz

Elaine Hitchcock

Tara McAllister