The Factor Structure of the Boston Diagnostic Aphasia Examination, Third Edition

Abstract

Objective: The Boston Diagnostic Aphasia Examination (BDAE) is one of the most commonly used aphasia batteries. The newest edition has undergone significant revisions since its original publication in 1972, but existing evidence for its validity is lacking. We examined the construct validity of BDAE-3 and identified the factor structure of this battery. Method: A total of 355 people with aphasia of various types and severity completed neuropsychological evaluations to assess their patterns of language impairment. A principal component analysis with varimax rotation was conducted to examine the components of BDAE-3 subtests. Results: Five components accounting for over 70% of the BDAE-3 total variance were found. The five language factors identified were auditory comprehension/ideomotor praxis, naming and reading, articulation-repetition, grammatical comprehension, and phonological processing. Conclusions: Our results show that the BDAE-3 demonstrates good construct validity, and certain language functions remain primary, distinct language domains (i.e., receptive vs. expressive language) across severities of aphasia. Overall, our findings inform clinical practice by outlining the inherent structure of language abilities in people with aphasia. Clinicians can utilize the findings to select core BDAE-3 tests that are most representative of their respective functions, thereby reducing the total testing time while preserving diagnostic sensitivity. (JINS, 2019, 25, 772–776)

Effectiveness of Melodic Intonation Therapy in Chinese Mandarin on Non-fluent Aphasia in Patients After Stroke: A Randomized Control Trial

“…The inform included the purpose, procedures, risks, benefits, confidentiality, and participants' rights. Once we acquired the consent forms, the participants were assessed by professional evaluators for the modified Boston Diagnostic Aphasia Examination (BDAE) (Fong et al, 2019) to determine non-fluent aphasia types. The clinical researchers screened patients based on BDAE scores to confirm whether they had an abnormal speech function.…”

“…The final evaluation was measured after 8 weeks. The test sessions consisted of the (1) BDAE (Fong et al, 2019) and (2) Hamilton Anxiety Scale (HAMA)/Hamilton Depression Scale (HAMD) (Spreen and Risser, 2003). During the evaluation process, no participants wore a 24-h Holter test or a 24-h ambulatory blood pressure test; no participants had unsealed tracheostomy and had difficulty expecting sputum.…”

“…BDAE is a measure used in the neuropsychological assessment of aphasia and is currently in its third edition (Fong et al, 2019). It evaluates language skills in aphasia based on perceptual modalities (auditory, visual, and gestural), processing functions (comprehension, analysis, and problem solving), and response modalities (writing, articulation, and manipulation).…”

Cost-effectiveness of speech and language therapy plus scalp acupuncture versus speech and language therapy alone for community-based patients with Broca’s aphasia after stroke: a post hoc analysis of data from a randomised controlled trial

“…The aphasia grading standard of severity from the Boston Diagnostic Aphasia Examination (BDAE) was taken as the primary outcome of treatment effectiveness. 16 As the original BDAE edition was not suitable for Chinese participants, a revised BDAE-Chinese (BDAE-C), 17 18 based on Chinese culture and language, has now been established as the standard for Chinese patients. The BDAE-C aphasia grading standard of severity has six grades: 0 (worst) to 5 (best).…”

Tele-Neuropsychological Assessment of Alzheimer’s Disease

“…Previous studies have shown no main differences in the results of the Mini-Mental State Evaluation (MMSE) test, the most common tool for preliminary cognitive screening, if administered via telehealth or FTF [ 11 , 12 ]. Other neuropsychological tests investigated in telemedicine were ADAS-Cog [ 13 ], clock drawing [ 14 ], Oral Trails [ 15 ], the Boston naming test, the picture description test (auditory response version), the Boston Diagnostic Aphasia Examination (BDAE) [ 16 ], letter and category fluency [ 17 ], Digit Span [ 18 ], Repeatable Battery for the Assessment of Neuropsychological Status [ 18 , 19 ], the Hopkins Verbal Learning Test-Revised (HVLT-R), IQCODE [ 20 ], the Aural Comprehension of Words and Phrases (ACWP) and Controlled Oral Word Association Test [ 21 ], and the Rowland Universal Dementia Assessment Scale (RUDAS) [ 22 ].…”