author_facet Fergadiotis, Gerasimos
Hula, William D.
Swiderski, Alexander M.
Lei, Chia-Ming
Kellough, Stacey
Fergadiotis, Gerasimos
Hula, William D.
Swiderski, Alexander M.
Lei, Chia-Ming
Kellough, Stacey
author Fergadiotis, Gerasimos
Hula, William D.
Swiderski, Alexander M.
Lei, Chia-Ming
Kellough, Stacey
spellingShingle Fergadiotis, Gerasimos
Hula, William D.
Swiderski, Alexander M.
Lei, Chia-Ming
Kellough, Stacey
Journal of Speech, Language, and Hearing Research
Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
Speech and Hearing
Linguistics and Language
Language and Linguistics
author_sort fergadiotis, gerasimos
spelling Fergadiotis, Gerasimos Hula, William D. Swiderski, Alexander M. Lei, Chia-Ming Kellough, Stacey 1092-4388 1558-9102 American Speech Language Hearing Association Speech and Hearing Linguistics and Language Language and Linguistics http://dx.doi.org/10.1044/2018_jslhr-l-18-0344 <jats:sec> <jats:title>Purpose</jats:title> <jats:p> In this study, we investigated the agreement between the 175-item Philadelphia Naming Test (PNT; <jats:xref ref-type="bibr">Roach, Schwartz, Martin, Grewal, &amp; Brecher, 1996</jats:xref> ) and a 30-item computer adaptive PNT (PNT-CAT; <jats:xref ref-type="bibr">Fergadiotis, Kellough, &amp; Hula, 2015</jats:xref> ; <jats:xref ref-type="bibr">Hula, Kellough, &amp; Fergadiotis, 2015</jats:xref> ) created using item response theory (IRT) methods. </jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>The full PNT and the PNT-CAT were administered to 47 participants with aphasia in counterbalanced order. Latent trait-naming ability estimates for the 2 PNT versions were analyzed in a Bayesian framework, and the agreement between them was evaluated using correlation and measures of constant, variable, and total error. We also evaluated the extent to which individual pairwise differences were credibly greater than 0 and whether the IRT measurement model provided an adequate indication of the precision of individual score estimates.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p> The agreement between the PNT and the PNT-CAT was strong, as indicated by high correlation ( <jats:italic>r</jats:italic> = .95, 95% CI [.92, .97]), negligible bias, and low variable and total error. The number of statistically robust pairwise score differences did not credibly exceed the Type I error rate, and the precision of individual score estimates was reasonably well predicted by the IRT model. </jats:p> </jats:sec> <jats:sec> <jats:title>Discussion</jats:title> <jats:p>The strong agreement between the full PNT and the PNT-CAT suggests that the latter is a suitable measurement of anomia in group studies. The relatively robust estimates of score precision also suggest that the PNT-CAT can be useful for the clinical assessment of anomia in individual cases. Finally, the IRT methods used to construct the PNT-CAT provide a framework for additional development to further reduce measurement error.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.8202176">https://doi.org/10.23641/asha.8202176</jats:ext-link> </jats:p> </jats:sec> Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing Journal of Speech, Language, and Hearing Research
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title Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_unstemmed Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_full Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_fullStr Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_full_unstemmed Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_short Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_sort enhancing the efficiency of confrontation naming assessment for aphasia using computer adaptive testing
topic Speech and Hearing
Linguistics and Language
Language and Linguistics
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description <jats:sec> <jats:title>Purpose</jats:title> <jats:p> In this study, we investigated the agreement between the 175-item Philadelphia Naming Test (PNT; <jats:xref ref-type="bibr">Roach, Schwartz, Martin, Grewal, &amp; Brecher, 1996</jats:xref> ) and a 30-item computer adaptive PNT (PNT-CAT; <jats:xref ref-type="bibr">Fergadiotis, Kellough, &amp; Hula, 2015</jats:xref> ; <jats:xref ref-type="bibr">Hula, Kellough, &amp; Fergadiotis, 2015</jats:xref> ) created using item response theory (IRT) methods. </jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>The full PNT and the PNT-CAT were administered to 47 participants with aphasia in counterbalanced order. Latent trait-naming ability estimates for the 2 PNT versions were analyzed in a Bayesian framework, and the agreement between them was evaluated using correlation and measures of constant, variable, and total error. We also evaluated the extent to which individual pairwise differences were credibly greater than 0 and whether the IRT measurement model provided an adequate indication of the precision of individual score estimates.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p> The agreement between the PNT and the PNT-CAT was strong, as indicated by high correlation ( <jats:italic>r</jats:italic> = .95, 95% CI [.92, .97]), negligible bias, and low variable and total error. The number of statistically robust pairwise score differences did not credibly exceed the Type I error rate, and the precision of individual score estimates was reasonably well predicted by the IRT model. </jats:p> </jats:sec> <jats:sec> <jats:title>Discussion</jats:title> <jats:p>The strong agreement between the full PNT and the PNT-CAT suggests that the latter is a suitable measurement of anomia in group studies. The relatively robust estimates of score precision also suggest that the PNT-CAT can be useful for the clinical assessment of anomia in individual cases. Finally, the IRT methods used to construct the PNT-CAT provide a framework for additional development to further reduce measurement error.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.8202176">https://doi.org/10.23641/asha.8202176</jats:ext-link> </jats:p> </jats:sec>
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author Fergadiotis, Gerasimos, Hula, William D., Swiderski, Alexander M., Lei, Chia-Ming, Kellough, Stacey
author_facet Fergadiotis, Gerasimos, Hula, William D., Swiderski, Alexander M., Lei, Chia-Ming, Kellough, Stacey, Fergadiotis, Gerasimos, Hula, William D., Swiderski, Alexander M., Lei, Chia-Ming, Kellough, Stacey
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description <jats:sec> <jats:title>Purpose</jats:title> <jats:p> In this study, we investigated the agreement between the 175-item Philadelphia Naming Test (PNT; <jats:xref ref-type="bibr">Roach, Schwartz, Martin, Grewal, &amp; Brecher, 1996</jats:xref> ) and a 30-item computer adaptive PNT (PNT-CAT; <jats:xref ref-type="bibr">Fergadiotis, Kellough, &amp; Hula, 2015</jats:xref> ; <jats:xref ref-type="bibr">Hula, Kellough, &amp; Fergadiotis, 2015</jats:xref> ) created using item response theory (IRT) methods. </jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>The full PNT and the PNT-CAT were administered to 47 participants with aphasia in counterbalanced order. Latent trait-naming ability estimates for the 2 PNT versions were analyzed in a Bayesian framework, and the agreement between them was evaluated using correlation and measures of constant, variable, and total error. We also evaluated the extent to which individual pairwise differences were credibly greater than 0 and whether the IRT measurement model provided an adequate indication of the precision of individual score estimates.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p> The agreement between the PNT and the PNT-CAT was strong, as indicated by high correlation ( <jats:italic>r</jats:italic> = .95, 95% CI [.92, .97]), negligible bias, and low variable and total error. The number of statistically robust pairwise score differences did not credibly exceed the Type I error rate, and the precision of individual score estimates was reasonably well predicted by the IRT model. </jats:p> </jats:sec> <jats:sec> <jats:title>Discussion</jats:title> <jats:p>The strong agreement between the full PNT and the PNT-CAT suggests that the latter is a suitable measurement of anomia in group studies. The relatively robust estimates of score precision also suggest that the PNT-CAT can be useful for the clinical assessment of anomia in individual cases. Finally, the IRT methods used to construct the PNT-CAT provide a framework for additional development to further reduce measurement error.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.8202176">https://doi.org/10.23641/asha.8202176</jats:ext-link> </jats:p> </jats:sec>
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spelling Fergadiotis, Gerasimos Hula, William D. Swiderski, Alexander M. Lei, Chia-Ming Kellough, Stacey 1092-4388 1558-9102 American Speech Language Hearing Association Speech and Hearing Linguistics and Language Language and Linguistics http://dx.doi.org/10.1044/2018_jslhr-l-18-0344 <jats:sec> <jats:title>Purpose</jats:title> <jats:p> In this study, we investigated the agreement between the 175-item Philadelphia Naming Test (PNT; <jats:xref ref-type="bibr">Roach, Schwartz, Martin, Grewal, &amp; Brecher, 1996</jats:xref> ) and a 30-item computer adaptive PNT (PNT-CAT; <jats:xref ref-type="bibr">Fergadiotis, Kellough, &amp; Hula, 2015</jats:xref> ; <jats:xref ref-type="bibr">Hula, Kellough, &amp; Fergadiotis, 2015</jats:xref> ) created using item response theory (IRT) methods. </jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>The full PNT and the PNT-CAT were administered to 47 participants with aphasia in counterbalanced order. Latent trait-naming ability estimates for the 2 PNT versions were analyzed in a Bayesian framework, and the agreement between them was evaluated using correlation and measures of constant, variable, and total error. We also evaluated the extent to which individual pairwise differences were credibly greater than 0 and whether the IRT measurement model provided an adequate indication of the precision of individual score estimates.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p> The agreement between the PNT and the PNT-CAT was strong, as indicated by high correlation ( <jats:italic>r</jats:italic> = .95, 95% CI [.92, .97]), negligible bias, and low variable and total error. The number of statistically robust pairwise score differences did not credibly exceed the Type I error rate, and the precision of individual score estimates was reasonably well predicted by the IRT model. </jats:p> </jats:sec> <jats:sec> <jats:title>Discussion</jats:title> <jats:p>The strong agreement between the full PNT and the PNT-CAT suggests that the latter is a suitable measurement of anomia in group studies. The relatively robust estimates of score precision also suggest that the PNT-CAT can be useful for the clinical assessment of anomia in individual cases. Finally, the IRT methods used to construct the PNT-CAT provide a framework for additional development to further reduce measurement error.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.8202176">https://doi.org/10.23641/asha.8202176</jats:ext-link> </jats:p> </jats:sec> Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing Journal of Speech, Language, and Hearing Research
spellingShingle Fergadiotis, Gerasimos, Hula, William D., Swiderski, Alexander M., Lei, Chia-Ming, Kellough, Stacey, Journal of Speech, Language, and Hearing Research, Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing, Speech and Hearing, Linguistics and Language, Language and Linguistics
title Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_full Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_fullStr Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_full_unstemmed Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_short Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
title_sort enhancing the efficiency of confrontation naming assessment for aphasia using computer adaptive testing
title_unstemmed Enhancing the Efficiency of Confrontation Naming Assessment for Aphasia Using Computer Adaptive Testing
topic Speech and Hearing, Linguistics and Language, Language and Linguistics
url http://dx.doi.org/10.1044/2018_jslhr-l-18-0344