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Outcome Measures

Primary Outcomes (1)

Comprehensive Probe or Monitored Sounds Probe
Accuracy data for the dependent variable will be derived from narrow phonetic transcription of participants' productions from speech generalization probes in English and Spanish. Both protocols elicit \~300 word productions and sample each singleton consonant and consonant cluster in the respective language a minimum of three times in every permissible word position. The entire generalization probe is administered at each assessment visit (Pre, Post, and 1- and 2-Month Follow-Ups), and shorter subset probes targeting only monitored sounds are administered during Baselines and weekly during Treatment. All transcriptions will be completed by research assistants unaware of the condition (simple or complex treatment target), arm of the study (English or Spanish language of intervention) or phase of the intervention study (Pre, Post, or Follow-up).
At initial visit, 2-4 times across the 2 weeks prior to intervention, once per week during the 6-week intervention, within 1 week after intervention, 1 month after intervention, and 2 months after intervention

Study Arms (2)

Spanish Language Intervention

EXPERIMENTAL

Treatment will be conducted entirely in Spanish, targeting Spanish speech sounds. Treatment will follow a drill-play format.

Behavioral: Speech Intervention

English Language Intervention

EXPERIMENTAL

Treatment will be conducted entirely in English, targeting English speech sounds. Treatment will follow a drill-play format.

Behavioral: Speech Intervention

Interventions

Speech InterventionBehavioral

The treatment will begin with imitation, whereby the child will produce target words following the study clinician's verbal model with 1:1 clinician feedback for the accuracy of the child's productions. This will include explicit articulatory instruction (i.e., verbal and visual cues) to elicit correct target forms. When a child achieves 75% accuracy following a verbal model across 2 consecutive sessions or completes the 9th session (whichever is first), treatment will shift to spontaneous production, in which the child will produce target words spontaneously or through elicitation without a verbal model. Treatment materials will be images of treatment target words, interactive games and stories, and a standard set of toys.

English Language InterventionSpanish Language Intervention

Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.

Eligibility Criteria

Age3 Years - 8 Years

Sexall

Healthy VolunteersNo

Age GroupsChild (0-17)

You may qualify if:

Participants will be regularly exposed to English for at least 3 months in one of the following ways: a) an English-speaking caregiver or sibling who interacts with the child on a daily basis in English, b) attendance at an English-speaking daycare, preschool, or elementary school.
Caregivers will have reported concern with their child's speech development and/or reduced intelligibility on the Intelligibility in Context Scale in Spanish or English.

Study Design

Study Type

interventional

Phase

phase 1

Allocation

NON RANDOMIZED

Masking

DOUBLE

Who Masked

PARTICIPANT, OUTCOMES ASSESSOR

Masking Details

Outcomes will be determined from phonetic transcription of participants' speech during assessment sessions. All transcriptions will be completed by research assistants unaware of the condition (simple or complex treatment target), arm of the study (English or Spanish language of intervention) or phase of the intervention study (Pre, Post, or Follow-up). The participant will be unaware of the relative complexity of their treatment target (i.e., condition: simple or complex).

Purpose

TREATMENT

Intervention Model

PARALLEL

Model Details: Two prospective treatment studies that share an identical study design, differing only in the language of treatment (Spanish or English). Both studies will employ a within- and across-subjects, single-subject experimental design (SSED) with multiple staggered baselines across two conditions (singleton consonant target vs. consonant cluster target).

Sponsor Type

OTHER

Responsible Party

SPONSOR INVESTIGATOR

PI Title

Assistant Professor

Treatment Targets in Spanish and English Bilingual Speech Intervention

Brief Summary

Registry Overview

Trial Relationships

Study Timeline

First Submitted

Study Start

First Posted

Primary Completion

Study Completion

Conditions

Keywords

Outcome Measures

Primary Outcomes (1)

Study Arms (2)

Spanish Language Intervention

English Language Intervention

Interventions

Eligibility Criteria

You may qualify if:

Sponsors & Collaborators

Study Sites (1)

MeSH Terms

Conditions

Condition Hierarchy (Ancestors)

Central Study Contacts

Study Design

Study Record Dates

You may not qualify if:

Data Sharing

Source record

Locations

Brief Summary

Registry Overview

Trial Relationships

Related Scientific Literature

Study Timeline

First Submitted

Study Start

First Posted

Primary Completion

Study Completion

Conditions

Keywords

Outcome Measures

Primary Outcomes (1)

Study Arms (2)

Spanish Language Intervention

English Language Intervention

Interventions

Eligibility Criteria

You may qualify if:

Sponsors & Collaborators

Study Sites (1)

MeSH Terms

Conditions

Condition Hierarchy (Ancestors)

Central Study Contacts

Study Design

Study Record Dates

You may not qualify if:

Data Sharing

Source record

Locations