Reanalyzing the DISMAS Test Data: Comparing IRT and CTT Based Estimates of the Error of Measurement
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14230%2F14%3A00076015" target="_blank" >RIV/00216224:14230/14:00076015 - isvavai.cz</a>
Výsledek na webu
<a href="http://www.itc2014ss.com/uploads/Libro%20grab%20CD%20Ong.pdf" target="_blank" >http://www.itc2014ss.com/uploads/Libro%20grab%20CD%20Ong.pdf</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Reanalyzing the DISMAS Test Data: Comparing IRT and CTT Based Estimates of the Error of Measurement
Popis výsledku v původním jazyce
DISMAS test (Traspe & Skalkova, 2013) is an original Czech assessment tool for the diagnosis of the structure of math disability in children in grades 1?5. It consists of five main areas divided into 14 unidimensional subtests and it was developed and standardized using classical test theory. Authors verified validity. Subtests? correlations with WISC-III were low, but significant, differences between normal and clinical population were high and significant for all grades. Regardless the high validity, reliability seemed to be poor ? Cronbach alpha ranged from .44 to .95 on subtest level, on the test level from .69 to .76 depending on the grade level. The aim of this paper is to show why. We questioned the adequacy of CTT and internal consistency as a method for estimating reliability in this case. That is why we applied simple Rasch model and Partial Credit Rasch model to reanalyze the data.
Název v anglickém jazyce
Reanalyzing the DISMAS Test Data: Comparing IRT and CTT Based Estimates of the Error of Measurement
Popis výsledku anglicky
DISMAS test (Traspe & Skalkova, 2013) is an original Czech assessment tool for the diagnosis of the structure of math disability in children in grades 1?5. It consists of five main areas divided into 14 unidimensional subtests and it was developed and standardized using classical test theory. Authors verified validity. Subtests? correlations with WISC-III were low, but significant, differences between normal and clinical population were high and significant for all grades. Regardless the high validity, reliability seemed to be poor ? Cronbach alpha ranged from .44 to .95 on subtest level, on the test level from .69 to .76 depending on the grade level. The aim of this paper is to show why. We questioned the adequacy of CTT and internal consistency as a method for estimating reliability in this case. That is why we applied simple Rasch model and Partial Credit Rasch model to reanalyze the data.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
AN - Psychologie
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů