Validity and reliability of a new test for Turkish-speaking aphasic patients: Ege Aphasia Test

Due to the fact that the phonetic, morphological and syntactic structures of the Turkish language differ significantly from other European languages, the translated forms of the currently available aphasia assessment batteries are not adequate for Turkish-speaking aphasic patients. The aim of this study was to assess the validity and reliability of the Ege Aphasia Test that we have developed. The test, which includes the 8 subtests of praxia, spontaneous language, auditory and verbal comprehension, repetition, naming, reading, writing and calculating, was applied into 100 aphasic patients, 40 dysarthric patients and 40 healthy subjects. All test-retest intra-class correlation coefficients were found to be excellent (ICC = 0.99). The Cronbach's coefficients ranged from 0.71 to 0.91. All the subtests showed significantly greater scores in aphasic patients (p < 0.05). Significant correlations were found between the subtests and corrected total score (p < 0.05). Finally, the Ege Aphasia Test has an acceptable validity and reliability. It seems to be a promising battery for evaluation of aphasia in the Turkish language, which is spoken mainly in Turkey and in the surrounding regions. We believe that this study will pioneer the development of aphasia rehabilitation in these countries and contribute to future studies.