Clinical trial Recruiting at 1 site Observational Ages 13 Months to 24 Months

Observing how toddlers react to strangers

Official title: The Malleability of Social Group Understanding in Infancy and Early Childhood

Run by University of California Santa Cruz · NCT06550206 · Data updated 2026-11-12

This study looks at how toddlers aged 13 to 24 months react to strangers of different races to see if their surroundings affect their feelings about unfamiliar people.

Quick facts

Study typeObservational
Ages13 Months to 24 Months
SexAll
Enrollment100 (estimated)
SponsorUniversity of California Santa Cruz
Academic / other
Locations1 site (Santa Cruz, California)
StatusRecruiting
StartedJuly 30, 2024
Main results expectedOctober 2025
Study endsOctober 2025
Registry record updatedMarch 11, 2025
Trial IDNCT06550206 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are typically developing toddlers aged 13 to 24 months.

Probably not a fit

Patients with known developmental delays may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates how toddlers aged 13 to 24 months respond to unfamiliar adults from different racial backgrounds. It involves a one-hour visit to a lab where toddlers will interact with two adults while being video recorded. Parents will complete surveys about their demographics and social networks to help researchers understand the influence of familiar social environments on children's stranger wariness. The goal is to assess variations in toddler responses based on factors like race and neighborhood diversity.

Why it matters

Potential benefit: If successful, this study could provide insights into early social development and inform strategies to foster positive social interactions in diverse environments.

How similar studies have gone: While studies on toddler social behavior exist, this specific focus on racial background and neighborhood diversity is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* typically developing
* age 13-24 months

Exclusion Criteria:

\- any known developmental delays

Where it's running

  • Social Science 2 Building
    Santa Cruz, California, United States
    Recruiting

Study contacts

  • Principal investigator: Hyesung Hwang, PhD — University of California Santa Cruz
  • Study coordinator: Seaera Juarez, BS
  • Email: serjuare@ucsc.edu
  • Phone: (760) 895-3878

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.