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Language Development DisordersNCT03441685

Strategies for Teaching Verbs

A study testing Semantic cues (perform action), syntactic cues (sentence frame), or combined semantic and syntactic cues in people with Language Development Disorders and Down Syndrome, run by Vanderbilt University Medical Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is designed to evaluate whether children with Down syndrome and children with typical development exhibit different levels of accuracy demonstrating novel verbs taught under three conditions: semantic cues (perform action), syntactic cues (sentence frame), and combined (syntactic and semantic cues). Read more about this study

Who is it for?
Ages 3 to 17 yearsHealthy volunteers can take part
What is being tested?
Semantic cues (perform action), syntactic cues (sentence frame), or combined semantic and syntactic cues
Could I receive a placebo?
No, everyone receives an active treatment
How many people
44 participants
Where
1 siteUnited States
Study dates
21 Mar 2018to 2 Jul 2021
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 3 to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Must use oral communication as their primary means of communication
  • Must be monolingual English speakers
  • Behaviorally able to attend for 20 minutes
  • Children with typical development must demonstrate no more than one standard deviation below the mean on the speech and language measures

Who cannot join

  • Nonverbal cognitive score less than three standard deviations below the mean (standard score of 54 below)
  • Identified hearing loss or failed hearing screening
  • Uncorrected vision impairment
  • Motor impairment that prevents completion of study activities
  • Concomitant disorders (e.g., Autism spectrum disorder)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Vanderbilt Bill Wilkerson Center

    Nashville, Tennessee, 37232

Other trials in United States

About this study

This study is designed to evaluate whether children with Down syndrome and children with typical development exhibit different levels of accuracy demonstrating novel verbs taught under three conditions: semantic cues (perform action), syntactic cues (sentence frame), and combined (syntactic and semantic cues). The participants complete an eligibility evaluation and then one verb learning session (approximately 60 minutes in length). During that verb learning session they are taught sets of words under each condition (i.e., within-subjects design) and then asked to identify and label those target words immediately after instruction.

Being tested
Semantic cues (perform action), syntactic cues (sentence frame), or combined semantic and syntactic cues
Medical subject headings
Language Development Disorders, Down Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Semantic cues (perform action), syntactic cues (sentence frame), or combined semantic and syntactic cuesBehavioural

    Verb Learning Session Teaching phase. The examiner labels each target word and performs the action 6 times in each condition. She elicits the target word from the participant 2 times per word per condition and provides feedback on accuracy.

    Testing phase. Receptive probes are administered after every 2 words are taught. Expressive probes are at the end of the condition. For receptive probes, the examiner asks the participant to identify novel verbs and for expressive probes, the examiner asks the child to label the novel action. Testing after 2 items is designed to decrease memory load. Participants have a brief break between conditions.

    Data are collected on: a) child responses on standardized assessments, (b) responses to verb learning probes, (c) parent responses to intake form, and (d) relevant medical history from electronic medical record.

    None of the above procedures present more than minimal risk to participants or research staff. Vanderbilt IRB approved all procedures.

Study groups in NCT03441685
Study groupRoleWhat they receive
Verb strategiesExperimentalThe examiner labels each target word and performs the corresponding action six times in each condition. She elicits the target word from the participant two times per word per condition and provides feedback on accuracy each time. In the semantic cues condition, the examiner prompts the child to perform the target action twice. In the syntactic cues condition, instead of only saying the target word with the present progressive verb marker, the examiner uses two forms of complete sentences while performing the action (i.e., "I am X-ing," and "See. I X."). In the combined condition, the examiner prompts the child to perform the target action and consistently uses complete sentences.
Receives: Behavioral: Semantic cues (perform action), syntactic cues (sentence frame), or combined semantic and syntactic cues

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Accuracy Identifying Taught Words - Syntactic Condition

    Participants are asked to receptively identify novel verbs taught in syntactic condition by selecting the video of the named verb from a field of two. Participants were asked to identify each of the 4 taught words per condition 3 times for a total of 12 trials per condition. This "receptive probe" has a minimum score of 0 and maximum of 12. Higher scores indicate a better outcome.

    Measured: From date of initial evaluation to focused intervention session, up to 1 month

  2. Accuracy Identifying Taught Words - Semantic Condition

    Participants are asked to receptively identify novel verbs taught in semantic condition by selecting the video of the named verb from a field of two. Participants were asked to identify each of the 4 taught words per condition 3 times for a total of 12 trials per condition. This "receptive probe" has a minimum score of 0 and maximum of 12. Higher scores indicate a better outcome.

    Measured: From date of initial evaluation to focused intervention session, up to 1 month

  3. Accuracy Identifying Taught Words - Combined Condition

    Participants are asked to receptively identify novel verbs taught in combined condition by selecting the video of the named verb from a field of two. Participants were asked to identify each of the 4 taught words per condition 3 times for a total of 12 trials per condition. This "receptive probe" has a minimum score of 0 and maximum of 12. Higher scores indicate a better outcome.

    Measured: From date of initial evaluation to focused intervention session, up to 1 month

Secondary outcomes (3)
  1. Accuracy Labeling Taught Words - Syntactic Condition

    After the teaching episodes for the syntactic condition participants are asked to label novel verbs expressively. Participants were asked to label each of the 4 taught words per condition one time for a total of 4 trials per condition. This "expressive probe" has a minimum score of 0 and maximum of 4. Higher scores indicate a better outcome.

    Measured: From date of initial evaluation to focused intervention session, up to 1 month

  2. Accuracy Labeling Taught Words - Semantic Condition

    After the teaching episodes for the semantic condition participants are asked to label novel verbs expressively. Participants were asked to label each of the 4 taught words per condition one time for a total of 4 trials per condition. This "expressive probe" has a minimum score of 0 and maximum of 4. Higher scores indicate a better outcome.

    Measured: From date of initial evaluation to focused intervention session, up to 1 month

  3. Accuracy Labeling Taught Words - Combined Condition

    After the teaching episodes for the combined condition participants are asked to label novel verbs expressively. Participants were asked to label each of the 4 taught words per condition one time for a total of 4 trials per condition. This "expressive probe" has a minimum score of 0 and maximum of 4. Higher scores indicate a better outcome

    Measured: From date of initial evaluation to focused intervention session, up to 1 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Feb 2018
  2. Study start21 Mar 2018
  3. Primary completion2 Jul 2021
  4. Study completion2 Jul 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
All participants complete the three intervention conditions within a single session. Order of conditions is counterbalanced across participants.
Masking
None (open label)
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03441685
Sponsor's protocol ID
172058
Status last verified
Dec 2023
First submitted
8 Feb 2018
Last updated
7 Jun 2024
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Semantic cues (perform action), syntactic cues (sentence frame), or combined semantic and syntactic cues in people with Language Development Disorders and Down Syndrome, run by Vanderbilt University Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 7 Jun 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Accuracy Identifying Taught Words - Syntactic Condition (time frame: From date of initial evaluation to focused intervention session, up to 1 month). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Jun 2024; AzTrials last refreshed its copy on 27 Oct 2026.

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