HAD test: a new Hungarian adult dyslexia screening test
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1
Hungarian Academy of Science - Semmelweis University, Infobionic Research Group of the Pázmány Péter Catholic University, Hungary
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2
Hungarian Academy of Sciences, Cognitive Science Research Group, HAS-Budapest Technical University, Hungary
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3
Eötvös Loránd University, Department of Phonetics, Speech and Language Development, Bárczy G. Faculty, Hungary
We have developed a computerized test battery designed to screen for dyslexia in persons of 16 years or older. Our HAD test comprises twelve different assessment modules, which measure (i) short term verbal memory by pseudo word repetition (PWR), pseudo word reading (PWR), pseudo word writing (PWW) and digit span (DS) tests; (ii) whole word reading by the help of time limited lexical decision (TLLD) test; (iii) parser reading using lexical decision (LD) test; (iv) phonological awareness by a spoonerism task (ST) and pseudo word writing (PWW); (v) executive functions by applying verbal fluency test for a given letter (VFL) and backwards digit span (BDS) test; (vi) the assessment of vocabulary size by verbal fluency test for given category (VFC) and lexical decision (LD) tests; (vii) lexical comprehension by the help of word replacement (WR) and 1 minute reading (OMR) test.
Using the HAD we tested 25 control and 22 dyslexic adults (mean age 24,4 and 24.7 years, respectively). Significant differences between the two groups were found in DS (span P<0.001); BDS (span P<0.01); in PWR (performance P<0.05; time P<0.001); in PWW (performance P<0.0001; time P<0.01); in TLLD (performance P<0.0001, time P<0.0001); in LD (performance P<0.05, time P<0.0001); in WR (performance P<0.0001); in OMR (syllable number P<0.0001) tests; and in ST (time P<0.05) test modules. Performance of the control and dyslexic groups was not different on the PWR, VFL, VFC and ST (in all cases, P>0.05) test modules. Importantly, controls and dyslexics did not differ in their general cognitive abilities: there were no significant differences comparing the two groups in visual memory, executive functions or in visual spatial memory evaluated by CantaBeclipse® test battery.
Our first results suggest that the computer assisted HAD language test battery might represent an efficient and reliable screening tool for differentiating high, moderate and low probability of dyslexia in Hungarian adult population.
Conference:
IBRO International Workshop 2010, Pécs, Hungary, 21 Jan - 23 Jan, 2010.
Presentation Type:
Poster Presentation
Topic:
Cognition and behavior
Citation:
Takács
J,
Lukács
A,
Kas
B,
Kóbor
I,
Gál
V and
Vidnyánszky
Z
(2010). HAD test: a new Hungarian adult dyslexia screening test.
Front. Neurosci.
Conference Abstract:
IBRO International Workshop 2010.
doi: 10.3389/conf.fnins.2010.10.00187
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Received:
02 May 2010;
Published Online:
02 May 2010.
*
Correspondence:
József Takács, Hungarian Academy of Science - Semmelweis University, Infobionic Research Group of the Pázmány Péter Catholic University, Budapest, Hungary, takacs@ana.sote.hu