Treatment Targets in Spanish and English Bilingual Speech Intervention
ConditionSpeech Sound Disorder
Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age3-8
SponsorPhilip Combiths
About this trial
The goal of this clinical trial is to learn which speech treatment targets result in the greatest amount of speech learning in Spanish-English bilingual children with speech sound disorders. The main questions it aims to answer are:
* Does linguistic complexity of the treatment target increase the amount of generalized learning within the treated language? * Does linguistic complexity of the treatment target increase the amount of generalized speech across languages?
Researchers will compare intervention effects across treatment provided in English and Spanish to see if the effect differs according to the language of intervention.
Participants will:
* Attend between 12 and 18 45-minute speech intervention sessions in Spanish or English for up to 6 weeks * Attend assessment visits before and after intervention * Attend follow-up assessment visits 1 month and 2 months after intervention
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
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.
Participants will present with 5 or more consonants or clusters missing from their phonetic inventories in each language to confirm presence of a speech sound disorder and sufficient gaps in phonological knowledge to warrant treatment.
Disqualifiers
Participants receiving speech or language treatment elsewhere during their participation in this project.
Trial design
Design model
Parallel
Treatments tested in this trial
Speech Intervention
BehavioralThe 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.
Treatment groups
16 Participants
are divided into 2 treatment groupsGroup A: Spanish Language InterventionExperimental treatment 1 intervention
Group B: English Language InterventionExperimental treatment 1 intervention
Trial outcomes
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).
Time frame
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 interventionSponsors and contacts
Click on the lead sponsor to view all of their trials.
Philip Combiths
Lead sponsor
University of Iowa
Sponsor institution
National Institute on Deafness and Other Communication Disorders (NIDCD)
Collaborator
Source ClinicalTrials.gov