Rasch modeling of revised token test performance: validity and sensitivity to change

Journal of Speech, Language, and Hearing Research : JSLHR
William D HulaJoseph M Mikolic

Abstract

The purpose of this research was to examine the validity of the 55-item Revised Token Test (RTT) and to compare traditional and Rasch-based scores in their ability to detect group differences and change over time. The 55-item RTT was administered to 108 left- and right-hemisphere stroke survivors, and the data were submitted to Rasch analysis. Traditional and Rasch-based scores for a subsample of 60 stroke survivors were submitted to analyses of variance with group (left hemisphere with aphasia vs. right hemisphere) and time post onset (3 vs. 6 months post onset) as factors. The 2 scoring methods were compared using an index of relative precision. Forty-eight items demonstrated acceptable model fit. Misfitting items came primarily from Subtest IX. The Rasch model accounted for 71% of the variance in the responses to the remaining items. Intersubtest patterns of item difficulty were well predicted by item content, but unexpected within-subtest differences were found. Both traditional and Rasch person scores demonstrated significant group differences, but only the latter demonstrated statistically significant change over time. Analysis of relative precision, however, failed to confirm a significant difference between the 2 method...Continue Reading

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Citations

Sep 1, 2009·Journal of Speech, Language, and Hearing Research : JSLHR·Carolyn R BaylorDagmar Amtmann
Nov 9, 2010·Cognitive Neuropsychology·Roee GutmanDavid Caplan
Mar 29, 2011·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Geisa GallardoMalcolm R McNeil
Feb 8, 2008·Brain and Language·Lisa H MilmanCynthia K Thompson
Jun 16, 2012·Arquivos de neuro-psiquiatria·Jonas Jardim de PaulaLeandro Fernandes Malloy-Diniz
Mar 31, 2015·Journal of Speech, Language, and Hearing Research : JSLHR·William D HulaGerasimos Fergadiotis
Jan 31, 2008·Journal of Speech, Language, and Hearing Research : JSLHR·Lisa H MilmanSteve Rapcsak
Jan 5, 2012·Journal of Speech, Language, and Hearing Research : JSLHR·Lisa A Edmonds, Neila J Donovan
Jan 11, 2012·American Journal of Speech-language Pathology·William D HulaNadine Martin
Sep 1, 2017·Journal of Speech, Language, and Hearing Research : JSLHR·Tim BrackenburyHolly L Storkel
Jan 31, 2008·American Journal of Speech-language Pathology·Rebecca J McCauley, Edythe A Strand

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