International Collaborative Development and Standardization of the English Version of STAD (Screening Test for Aphasia and Dysarthria)

An International Collaborative Study on the Development, Linguistic and Cultural Adaptation, and Standardization of the English Version of the Screening Test for Aphasia and Dysarthria (STAD) - STAD-English Standardization Study

Status

Active, not recruiting

Phases

Phase 1

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000060940

Enrollment

400

Registered

2026-03-16

Start date

2026-05-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-brain injury communication disorders, including aphasia, dysarthria, and communication disorders associated with higher brain dysfunction

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1.Individuals who provide written informed consent to participate in the study 2.Adults whose primary language is English 3.For the healthy control group, individuals without an apparent history of brain injury, neurological disease, psychiatric disorder, or severe visual or hearing impairment 4.For the patient group, individuals judged to have aphasia, dysarthria, or communication disorders associated with higher brain dysfunction after brain injury 5.Individuals with an adequate level of consciousness and general condition to undergo the assessment

Exclusion criteria

Exclusion criteria: 1.Individuals with severe disturbance of consciousness or poor general condition that makes assessment difficult 2.Individuals with severe visual, hearing, or motor impairment that makes assessment difficult 3.Individuals judged by the principal investigator or subinvestigators to be inappropriate for participation in this study

Design outcomes

Primary

Measure	Time frame
Total score of the English version of STAD, measured at a single assessment in English-speaking participants using the finalized version after linguistic and cultural adaptation	—

Secondary

Measure	Time frame
1.Scores for each subitem of the English version of STAD, measured at a single assessment in English-speaking participants and patients 2.Administration time of the English version of STAD, measured during a single assessment 3.Participant feedback on comprehensibility and ease of response after administration of the English version of STAD, collected immediately after the assessment 4.Number and content of items judged to require linguistic and cultural modification, evaluated after each assessment 5.Internal consistency, inter-rater reliability, test-retest reliability, and validity based on associations with established standard assessments of the English version of STAD, evaluated using patient data	—

Measure

Time frame

1.Scores for each subitem of the English version of STAD, measured at a single assessment in English-speaking participants and patients 2.Administration time of the English version of STAD, measured during a single assessment 3.Participant feedback on comprehensibility and ease of response after administration of the English version of STAD, collected immediately after the assessment 4.Number and content of items judged to require linguistic and cultural modification, evaluated after each assessment 5.Internal consistency, inter-rater reliability, test-retest reliability, and validity based on associations with established standard assessments of the English version of STAD, evaluated using patient data

—

Countries

Japan,North America,South America,Europe

Contacts

Public ContactKentaro Araki

International Medical Welfare University Narita Hospital Department of Rehabilitation Technology

kentaro-araki@ihwg.jp0476-35-5639

Outcome results