Assessment of Multiple Perspectives on Stuttered Speech™ (AMPSS™) Protocol
Study Overview - July 2026

Stuttering Therapy Resources is developing an all-new protocol for measuring stuttering, the Assessment of Multiple Perspectives on Stuttered Speech, or AMPSS, protocol. This measure is focused on the speaker's perceptions during moments when they feel "stuck" or have difficulty speaking the way they want or when they want.

To ensure that the measure accurately reflects the experiences of people who stutter, we are conducting a research study to collect data from speakers who stutter, as well as from important conversational partners, including parents and other caregivers, teachers, and speech-language pathologists.

Stuttering Therapy Resources is carefully following ethical procedures to ensure safety and confidentiality of participants. Your identifiable data will not be collected or shared with anyone, and you may discontinue participation at any time. A full informed consent statement is included in each component of the study.

If you are interested in participating in this study, please click the appropriate link below for more information:

Parent or primary caregiver of a young child who stutters (age 2 to 6)

Parent or primary caregiver of a child or teen who stutters (ages 7 to 17)

Adult who stutters (ages 18 and above)

Speech-language pathologist (SLP)*

Conversational Partner (e.g., teacher, family member, significant other)

To contact us about this project, email AMPSS@AMPSS-SLP.com. Thank you for helping us learn about stuttering!

J. Scott Yaruss, PhD, CCC-SLP, BCS-SCF, F-ASHA, H-ASHA
Nina Reeves, MS, CCC-SLP, BCS-SCF, F-ASHA

*If you are a Speech-Language Pathology Assistant (SLPA), please share the link for this study and the unique speaker confidentiality code with your supervising SLP for them to complete. Because this study is focused on developing a new diagnostic tool, it must be completed by a certified SLP.