Screening Test for Aphasia and Dysarthria (STAD) - Why choose us?

STAD can be used for all types of brain injury - Screening Test for Aphasia and Dysarthria

  • Brain tumor
  • Cerebral infarction
  • Epidural hematoma
  • Head trauma
  • Intracerebral hemorrhage
  • Subarachnoid hemorrhage
  • Subdural hematoma

And more


Over 18 years spent developing STAD in Japan

We have improved the test accuracy of STAD without compromise. You can use the screening test, which will be clearly different from your own tests, with ease in your clinical practice. 


The3 reasonswhy STAD was selected

THOROUGH

Assessing multiple aspects of communication

  • STAD consists of verbal, articulation, and nonverbal sections
  • This multifaceted approach allows clinicians to obtain a holistic understanding of a patient's communicative abilities, facilitating the development of targeted intervention strategies.

ACCURATE

Evidence-Based Reliability and Validity

  • Reliability: Chronbach’s α from 45 acute strokes study
  • Concurrent Validity: Spearman’s rs from 48 stroke patients
  • Normative data: －1.5 SD from 222 healthy controls aged over 50 years

read more

ADAPTIVE

Adaptability for Diverse Patient Populations

  • Very short period of time without burden on patients
  • With increased adaptability, even for patients with severe communicative disorders

Endorsements from Clinical Professionals

Ms. Ayumi Uehara (SLP)

"STAD has enabled me to assess patients efficiently, reducing their burden and facilitating early symptom understanding."

Ms. Miho Miyasaka (SLP)

 "STAD provides a consistent framework for screening, enhancing confidence in patient evaluations."


Recommendation

The Research Center for Child Mental Development,
Professor Eiji Shimizu

 "Mr. Kentaro Araki's dedication to developing STAD reflects a commitment to advancing evidence-based practices in assessing communicative functions in brain-injured patients."


Department of Rehabilitation, non-tenured professor,
Machiko Kozono

"STAD represents a significant contribution to the field, offering clinicians a reliable tool to enhance their diagnostic and therapeutic skills."


Kentaro Araki, a developer and representative of the STAD, is responsible for the contents.

Recognized in Peer-Reviewed Journals and International Conferences

Journals

  • Araki K, Hirano Y, Kurita K, Shimizu E. Associations between Non-Verbal Cognitive Assessment and Stroke Recovery via Screening Test for Aphasia and Dysarthria. J Stroke Cerebrovasc Dis. 2025/Feb;34(2):108217. Online ahead of print. https://doi.org/10.1016/
  • 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. https://doi.org/10.1159/000519381

International conferences

  • Kentaro Araki, Kristie Jackson, Masako Fujiu-Kurachi: Cross-Cultural Validation Study of the Screening Test for Aphasia and Dysarthria (STAD). ASHA Convention: Dec 2024, Seattle
  • 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. 

Books

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

Message

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! 

Get STAD for FREE