Are you worried about communicative screening tool?

Our newly invented STAD can help you!

Our STAD team of developers caters to your needs to effectively screen for communicative dysfunctions during your busy clinical time.

STAD can be used immediately, it is easy to understand and enables us to make decisions for further evaluation. Rin Shibuya (SLP).

■Japanese version of STAD can be found at here 

What makes us#1


STAD is for SLPs

STAD was specifically designed for Speech-Language Pathologist’s (SLP’s) clinical practice and can be useful in specific contexts, such as in early bedside investigations, obtaining a quick summary of communicative function prior to the administration of other tests, and in cases where more in-depth testing is not feasible.


Screen with good accuracy

Our previous study included over 200 healthy controls and 400 patients proved its validity and reliability. These psychometric features ensure that STAD can be used as a dependable tool in clinical sessions.


Burden-free for patients

Owing to its simplicity, STAD is easy to administer. This feature enables STAD to assist the communicative function of any brain injury patient and helps build good relationships with them.


Visualize communication

STAD scores can indicate quantitatively the severity of the communicative function. When plotting patient scores on the STAD profile sheet over time, changes in the severity of the patients ability to communicate can be visualized.

The best thisn about STAD is that it is 

Completely FREE of CHARGE!

But… ONLY for a limited period of time


Can I use STAD given my circumstances?

The STAD can be adopted for any brain injury patient, provided that the patient can open their eyes spontaneously and can be used in any situation, such as clinical rooms, bedside, day rooms, and the home environment. STAD is highly suited to clinical practice.

I am not familiar with STAD administration, scoring, and interpretation.

STAD comprises of simple items, which are typically used in the clinical practice of Speech-Language pathology. STAD can be used without specific expertise, provided you are a licensed Speech-Language Pathologist (SLP). For further details on this, please refer to the “belief administration/scoring manual” which is provided with the STAD.

I am happy with my own screening method.

The more communicative evaluation tools you have at your disposal, the more informed you become and better choices about treatment can be made. In addition, you have everything to gain because STAD is now COMPLETELY FREE for a limited time only

Why is STAD free?

Thanks to KAKENHI funding from the Japanese government, we can offer STAD free of charge.  While STAD is free to use, we would greatly appreciate feedback on the use of STAD in practice. As part of our continued research, we will be evaluating the success of the approach and practitioners are invited to contribute by taking part in future experiments.

I am not an SLP. Can I still use STAD?

STAD is specifically designed for SLPs only. However we are considering making it available to other professions in the future. If you have ideas about other potential application areas in the medical domain, we would be delighted to hear from you. 
※ Please note we do not accept applications from those who are not medical experts.

How do
I get
STAD now?

Place an order

Please fill in the form in “Contact us.

Download STAD through the email link provided

An email will be sent to you within a few days.

Take the training program

We will send you information on how to use STAD effectively.

Perform STAD assessment

After preparing the items used for STAD assessment, you can immediately administer it.

Benefits of STAD, Screening Test for Aphasia and Dysarthria


Express administration

Do you work in a busy, acute-care hospital? Get communicative screener testing in 10 m (9 m 48 s on average).


Any situation

Only three objects are required. You can use STAD at the bedside, in the home environment, day rooms, and clinical rooms.


With STAD expert

We look forward to your questions. Please feel free to contact us.

Meet users of STAD - Screening Test for Aphasia and Dysarthria

Ms. Ayumi Uehara (SLP)

I have been thinking about how I can reduce the burden of patients’, how I can better understand their symptoms at an early stage, and how to perform screenings in a short period. STAD is not difficult to use and it gets easier with practice. Thank you for bringing this to our attention.

Ms. Miho Miyasaka (SLP)

When reviewing new patients, there were differences in review points between beginner medical members and experienced experts, and it seemed that beginners were not sure how to review them. We provided advice, however we were not convinced that our advice was 100% correct. Although screening is easy, the contents need to be understood. 

Evidence of STAD in journals, international conferences and  books


  • Araki K, Hirano Y, Kozono M, Fujitani J, Shimizu E. The Screening Test for Aphasia and Dysarthria (STAD) for Patients with Neurological Communicative Disorders: A Large-Scale, Multicenter Validation Study in Japan. Folia Phoniatr Logop. 2021/Sep/10. Online ahead of print.
  • Araki, K., Kozono, M., Asada, K., Shimizu, E., 2018. Standardization of Screening Test for Aphasia and Dysarthria (STAD) Clinical Neuropsychology (Tohoku) 29, 11-16 (in Japanese). 
  • Araki, K., Uno, S., Fujitani, J., Fushimi, T. (2009). Screening for aphasia and dysarthria in patients with acute stroke Nihon Gengo Chōkakushi Kyōkai (Japanese Journal of Speech, Language, and Hearing Research), 6, 3-11 (in Japanese).

International conferences

  • Kentaro Araki, Yoshiyuki Hirano, Kozono Machiko, Eiji Shimizu: Predicting Discharge to Home and Brain Lesions Using the Screening Test for Aphasia and Dysarthria. ASHA Convention: Nov 2021, Washington
  • Kentaro Araki, Yoshiyuki Hirano, Kozono Machiko, Eiji Shimizu: Screening Test for Aphasia and Dysarthria and Prediction of Stroke Patients' Discharge to Home. ASHA Convention: Nov 2020, San Diego.
  • Kentaro Araki, Yoshiyuki Hirano, Kozono Machiko, Eiji Shimizu: Development of a Worldwide Screening Test for Communicative Disorders Poststroke for International Comparisons. Academy Of Aphasia: Oct 2019,
    Macau. DOI: 10.3389/conf.fnhum.2019.01.00010 
  • Kentaro Araki, Daisuke Matsuzawa, Machiko Kozono, and Eiji Shimizu: A pilot study for standardizing the screening test for aphasia and dysarthria (STAD).  APCSLH: September 2017, Narita. 
  • Kentaro Araki, Daisuke Matsuzawa, Junko Fujitani, Eiji Shimizu: Development of a screening test for aphasia and dysarthria.  ASHA Convention: Nov 2014, Florida. 


  • Araki, K., Kozono, M., 2018, Screening Test for Aphasia and Dysarthria. Interuna Publishers, Inc. (in Japanese). ISBN-13: 978-4900637542 


Because we provide the STAD for FREE, we would be grateful if you could consider:

  • answering a questionnaire about STAD
  • cooperating on future STAD research

And making the STAD more useful and effective for improved clinical practice in the future!