DEVELOPMENT AND EVALUATION OF THE RELIABILITY OF PERSIAN VERSION OF DOUBLE DICHOTIC DIGIT TEST IN GIRLS AGED 7 TO 11 YEARS

Background and Aim: The double dichotic digit test (DDT) is a simple test for assessing and screening auditory processing system. The purpose of this study was to develope a double DDT, in Persian language and find its basic norm values in girls aged 7 to 11 years. Methods: The Persian version of double DDT is composed of 3 different 25 numerical lists. Numbers in each list were recorded dichotically. The present cross‐sectional study was performed on 200 girls aged 7 to 11 years. Test-retest reliability was assessed in 30 of the study subjects. Results: The mean scores of the right and left ears in the free recall condition increased from 92.33 and 86 percent in 7 year olds to 99.75 and 98.16 percent in 11 year olds and in the directed condition from 95 and 88.80 percent in 7 year olds to 100 and 98.41 percent in 11 year olds. In the free recall condition the right ear advantage value decreased from 6.33 percent in 7 year olds to 1.58 percent in 11 year olds, respectively and in directed recall condition, decreased from 6.91 percent in 7 year olds to 1.59 percent in 11 year olds. The test has as high consistency reliability (p>0.05). Conclusion: According to results of the present study, the Persian version of the double DDT has suitable reliability for assessing the central auditory processing system in 7 to 11 year old girls.

[1]  S. Jalaie,et al.  Development of the Persian single dichotic digit test and its reliability in 7-9 year old male students , 2014 .

[2]  M. Carrier,et al.  Assessing the development of binaural integration ability with the French dichotic digit test: Ecoute Dichotique de Chiffres. , 2012, American journal of audiology.

[3]  Eliane Schochat,et al.  O teste Gaps-in-Noise: limiares de detecção de gap em crianças de 9 anos com audição normal , 2011 .

[4]  E. Schochat,et al.  Gaps-in-Noise test: gap detection thresholds in 9-year-old normal-hearing children. , 2011, Jornal da Sociedade Brasileira de Fonoaudiologia.

[5]  C. Roup,et al.  Dichotic speech recognition using CVC word and nonsense CVC syllable stimuli. , 2011, Journal of the American Academy of Audiology.

[6]  K. Hugdahl,et al.  Top–down and bottom–up interaction: manipulating the dichotic listening ear advantage , 2009, Brain Research.

[7]  S. Sisodiya,et al.  The role of the interhemispheric pathway in hearing , 2007, Brain Research Reviews.

[8]  Shaum P. Bhagat,et al.  Can children with (central) auditory processing disorders ignore irrelevant sounds? , 2007, Research in developmental disabilities.

[9]  R. Keith,et al.  Development and standardization of single and double dichotic digit tests in the Malay language , 2006, International journal of audiology.

[10]  F. Musiek,et al.  Differential attention effects on dichotic listening. , 2005, Journal of the American Academy of Audiology.

[11]  R H Wilson,et al.  The effect of filtering and inter-digit interval on the recognition of dichotic digits. , 2000, Journal of rehabilitation research and development.