Thirty Million Words Home Visiting

Running, not enrolling · Not applicable

Conditions studied: Language Environments of Children of Low-socioeconomic Status

In brief

The TMW intervention aims to foster parental behaviors that facilitate children's language emergence at a critical developmental stage, and thus will be implemented at 13-16 months of age. The investigators hypothesize that the primary effects of the TMW Intervention will significantly 1) improve low-SES parents' understanding of the importance of parent language in a child's development, 2) increase parents' linguistic interaction, responsiveness, and overall engagement with their children, and 3) increase children's language output, as measured through LENA (child vocalization count, conversational turn count), coded video interaction (number of types, tokens and utterances for both children and adults), audio recordings from The Three T's application during the video sessions, and a battery of assessments targeting linguistic and cognitive development. Furthermore, the investigators hypothesize that increased parental interaction will result in 4) an improvement in children's socioemotional development as assessed by the Social Emotional Ages and Stages Questionnaire (ASQ-SE). Finally, the investigators hypothesize that these socioemotional and linguistic gains through early development, along with sustained increased parental engagement, will be expressed in 5) increased child school readiness upon kindergarten entry as assessed by Woodcock-Johnson Psycho-Educational Battery (WJ). Added 2023: an 8th child-assessment, parent/child interaction video session, and parent surveys have been added with the original sample to measure long-term outcomes of children whose parents participated in the home visiting intervention.

Key facts

Study ID

NCT02216032

Run by

University of Chicago

People needed

206

Starts

2014-11-01

Expected to finish

2026-12-01

Last updated by the study team

2026-04-08

Who can join

Age: 1 and older, up to 1. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• participants (i.e. parents and their children) who live at or below 250% of the federal poverty line
• paternal education at or below BA/BS
• parents with children between the ages of 13-16 months old

You may not qualify if…

• participants (i.e. parents and their children) who live over 200% of the federal poverty line
• parents under the age of 18
• children younger than 13 months old or older than 16 months old (at start of study)
• parents who do not have legal custody of their child
• parents whose child does not live with them
• parents who are not with their child at least two full days per week
• parents who are unable to commit to the intervention requirements
• foster parents
• children with significant cognitive or physical impairments (specifically Autism Spectrum Disorder, Epilepsy, Cerebral Palsy, hearing impairment, Down Syndrome and blindness)
• parents who have earned or are currently working toward a graduate or professional degree (e.g. M.A., M.S., M.B.A)
• parents who speak less than 80% English to their children.

Where it is running

• Thirty Million Words® Initiative at the University of Chicago Medicine — Chicago, Illinois, United States

Full record on ClinicalTrials.gov

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