Free Assessment Tools
The PNT-CAT is a free web-app that can give a 30-item computer-adaptive version of the Philadelphia Naming Test (PNT) in less than 10 mins. It uses the psychometric framework called item-response theory (IRT), which allows items to be dynamically selected during the test to match the person's naming ability estimate based on their responses in real time. This process reduces testing length and burden while maintaining reliability, so the adaptive test performs very similarly to the full 175-item PNT. Further, it reduces item test-retest effects by generating multiple (2) test forms without overlapping items. IRT allows for appropriate confidence intervals for each individual and provides meaningful comparisons across and within individuals on an interval scale. Give it a test run and use with your patients now!
Additionally, there is a variable-length adaptive test for up to 175 items, with the number of administered items depending on each person. The standard PNT and two static 30-item PNT short forms are also available.
References
Hula, W. D., Fergadiotis, G., Swiderski, A. M., Silkes, J. P., & Kellough, S. (2020). Empirical Evaluation of Computer-Adaptive Alternate Short Forms for the Assessment of Anomia Severity. Journal of Speech, Language, and Hearing Research, 63(1), 163–172. https://doi.org/10.1044/2019_JSLHR-L-19-0213
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Fergadiotis, G., Hula, W. D., Swiderski, A. M., Lei, C., & Kellough, S. (2019). Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing. Journal of Speech, Language, and Hearing Research, 62(6), 1724–1738. https://doi.org/10.1044/2018_JSLHR-L-18-0344
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Aphasia Communication Outcome Measure (ACOM)
Another free web-app of a computer-adaptive, patient-reported outcome measure of daily communicative functioning for people with aphasia. This tool also uses IRT (mentioned above) to provide reliable and valid scores in less time.
Reference
Hula, W. D., Doyle, P. J., Stone, C. A., Austermann Hula, S. N., Kellough, S., Wambaugh, J. L., Ross, K. B., Schumacher, J. G., & Jacque, A. (2015). The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation. Journal of Speech, Language, and Hearing Research, 58(3), 906-919. https://doi.org/10.1044/2015_JSLHR-L-14-0235