Abstract
The aim of the current study was to adapt the Boston Diagnostic Aphasia Examination – Short Form (BDAE-SF) [1] to the Greek language and culture, determine the influence of demographic variables on performance and in particular the effects of age and education, develop normative data, and examine the discriminative validity of the test for acute stroke patients. A sample of 129 community healthy adults participated in the study (66 women), covering a broad range of ages and education levels so as to maximize representation of the Greek population and be able to examine the effects of age and education in language performance. Regression models showed that, overall, younger and more educated individuals presented higher performance on several subtests. Normative data for the Greek population are presented in percentile tables. Neurological patients' performance was compared to that of the neurologically intact population using Wilcoxon's rank sum test and for the most part was found to be significantly inferior, indicating good discriminant validity of the test. Qualitative errors of patients diagnosed with aphasia on the test are presented, and limitations and generalizable strengths of this adaptation are discussed.
Highlights
The Boston Diagnostic Aphasia Examination (BDAE -3 [1,2]) is extensively used in clinical evaluations for the measurement of aphasic patients’ performance in all aspects of language functions, identifying the specific language deficits and the exact profile of differential aphasic syndromes
There has been a preliminary attempt to provide some normative data of the previous full version of BDAE-2 [8] without, providing any data from aphasic patients’ performance that would assess the discriminant validity of the full-test adaptation
The aims of the current study were to administer each subtest of the Greek version of the Boston Diagnostic Aphasia Examination – Short Form (BDAE-SF) to a Greek sample in order to: (1) determine the influence of demographic characteristics on performance, as scores on language tasks are clearly related to age and education [1]; (2) create a normative database and use minimum normal controls’ scores as indicators of the differentiating cutoff between aphasics with mild deficits and normal controls; (3) compare the performance of normal controls to neurological patients in order to determine that test’s ability to discriminate between normal functioning and aphasia
Summary
The Boston Diagnostic Aphasia Examination (BDAE -3 [1,2]) is extensively used in clinical evaluations for the measurement of aphasic patients’ performance in all aspects of language functions, identifying the specific language deficits and the exact profile of differential aphasic syndromes. This test is widely used in research protocols. There has been a preliminary attempt to provide some normative data of the previous full version of BDAE-2 [8] without, providing any data from aphasic patients’ performance that would assess the discriminant validity of the full-test adaptation. Given the need for screening tools that could be administered under the time limits frequently imposed in medical settings and determine the need for further referral to a
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