Free aphasia assessment calculators
Take a validated aphasia assessment yourself, free. Get a score, see what it means, and check the evidence behind each one.
How common it is
About 1 in 3 stroke survivors has aphasia.
Around two million people in the United States are living with aphasia, and an estimated 100,000 to 180,000 people acquire it each year.1,2 Stroke is the leading cause.1Aphasia is more common than Parkinson’s disease, cerebral palsy, or muscular dystrophy, yet far fewer people have heard of it.
- 1.National Institute on Deafness and Other Communication Disorders (NIDCD). Aphasia. nidcd.nih.gov/health/aphasia.
- 2.American Speech-Language-Hearing Association (ASHA). Aphasia (Practice Portal), citing Ellis et al. 2010 and the National Aphasia Association.
Understanding aphasia
Aphasia affects how a person produces and understands language. It can touch speaking, understanding speech, reading, and writing, while leaving thinking and memory intact. It most often follows a stroke, and can also follow head injury, tumor, or a progressive condition.
These calculators measure language across those areas. Some are brief screens that flag whether aphasia is present. Others are full batteries that profile the type and severity, or track recovery over time. A few measure the everyday impact on communication and quality of life. Some also probe inner speech, which is relevant to communication and to brain-computer interface research.
Aphasia assessment calculators
Each one is free. Open it to take the assessment, get a score, and see what it measures and the evidence behind it.
Take yourself or with family
Clinician-administered
Western Aphasia Battery (WAB)
A full language profile and aphasia quotient.
Philadelphia Naming Test (PNT)
Naming ability across 175 pictures.
Mississippi Aphasia Screening Test (MAST)
A brief screen.
Frenchay Aphasia Screening Test (FAST)
A brief bedside screen.
Geva Inner Speech Battery
Inner speech, relevant to communication and BCI candidacy.
Could a brain-computer interface help?
The Brain-Computer Interface Registry connects people with aphasia to trials building new ways to communicate. Complete your assessments once, and be matched to trials as they open.
These calculators use validated instruments and are reference information, not a diagnosis.