An interventional study of Impact Parent Training and No Impact in Autism Spectrum Disorder, sponsored by Vanderbilt University. Completed at 2 sites in United States. Open to participants aged 12 Months to 18 Months. Per ClinicalTrials.gov, last updated 2019-10-02.
Sponsored by Vanderbilt University · Not applicable, Interventional, and Treatment
Over a 5 year period infant and baby siblings of children with autism spectrum disorders (ASD) will be recruited to this study and will be randomized into 2 groups. Parents of the intervention group will receive 12 weeks of coaching in how to implement this intervention. Parents randomized to the control group will not receive intervention coaching. Both groups will attend a series of clinic appointments for data collection that occur at 3 month intervals over a 9 month period.
This two-site randomized controlled trail (RCT) will include a sample of 80 siblings of children with ASD (Sibs-ASD) (11 months, 15 days to 18 months, 15 days) who are stratified on initial cumulative-risk status for communication disorder and then randomly assigned to Ingersoll's Improving Parents As Communication Teachers (ImPACT; Ingersoll \& Dvortcsak, 2010) treatment or to a business-as-usual (BAU) control condition. The following hypotheses will be tested:
Younger sibling of a child with ASD -
Exclusions:
No primary motor impairment. No feeding tubes. No other neurological or genetic conditions. Primary language exposure: The primary parent speak to the child using English 50% of the time, and process.
Parents receive 22 1.5-hour sessions with a Speech Language pathologist coaching them in the implementation of the Impact intervention
Behavioral: Impact Parent Training
No parent coaching is provided
Behavioral: No Impact
Growth in communication
weighted frequency of intentional communication from the Communication and Symbolic Behavior Scale, high is good range is 0 - 400
Time frame: Change between baseline and 9 months after entry
Growth in play
raw scores from Developmental Play Assessment, high is good, range is 0 to 50
Time frame: Change from Baseline to 9 months after entry
Motor imitation
raw scores from the Structured Social Imitation Scale, high is good, range 0 - 50
Time frame: Change from Baseline to 9 months after entry
Autism social affect symptomatology
average of z score from raw scores from Communication and Symbolic Behavior Scale and Autism Diagnositic Observation Schedule (reflected) if they are correlated \> .4, after reflection high is good, -4 to 4
Time frame: 9 months after entry
Language delay
average of z scores from standard scores or percentile rankings from MacAuthur Communication Development Index and Mullen Scale of Early Learning if they are correlated above .4, high is good, range is -4 to 4
Time frame: 9 months after entry
language level
average of time 4-referenced z scores from raw scores from Communication and Symbolic Behavior Scales, Brief Observation of Social Communication Change, and MacArthur Communication Development Index if they are correlated above .4, High is good, -4 to 4
Time frame: Change from baseline to 9 mos after treatment ends
parent implementation of ImPACT treatment
fidelity of treatment of aspects of ImPACT treatment from PCS and PCFP
Time frame: change from baseline to immediately post-treatment
Plan to share: No
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This study is completed, as verified in Sep 2019. You cannot join it, but the record below documents what was studied.
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Vanderbilt University