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Impact of Conversational Approaches in Pediatric Social Robot-Mediated Interventions

The Impact of Conversational Approaches in Pediatric Robot-Mediated Interventions on Children's Responses in Hospital Settings: A Comparative Study of Rule-Based vs. LLM-Based Systems

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07389902
Acronym
PRIA
Enrollment
60
Registered
2026-02-05
Start date
2026-02-09
Completion date
2027-07-30
Last updated
2026-02-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hospitalized Children, Pediatric Patients, Pediatric Patients in Hospital Settings

Keywords

Child-robot interaction, Social robot, Pediatric hospitalization, Large language models, Human-robot interaction, Pediatric care

Brief summary

This study examines how different robot dialogue systems (rule-based vs. large language model-based) and content types (emotional support vs. safety education) affect pediatric patients' responses during hospital-based robot-mediated interventions. Approximately 60 pediatric patients aged 2-9 years will be randomly assigned to interact with a social robot (LIKU) using either rule-based or LLM-based dialogue. Each child will participate in two activity sessions (emotional content and safety content) in randomized order. Primary outcomes include child engagement, emotional responses, robot perception, and activity preferences, assessed through standardized questionnaires (UEQ, Godspeed), child interviews, and behavioral observations. Additionally, 5 experts will evaluate content appropriateness and safety. This pilot study aims to provide foundational data for developing personalized pediatric robot programs in hospital settings, optimizing both dialogue approaches and content design based on individual child characteristics.

Interventions

BEHAVIORALRobot-Mediated Emotional Support Activity

10-15 minute structured activity focusing on emotional recognition, expression, and regulation through storytelling, discussion, and artistic activities (drawing, physical expression) with the LIKU social robot

BEHAVIORALRobot-Mediated Safety Education Activity

10-15 minute structured activity focusing on safety awareness and emergency response behaviors through educational videos, discussions, and hands-on activities (crafts, physical practice) with the LIKU social robot

Sponsors

Samsung Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)

Intervention model description

Between-subjects factor: Robot dialogue type Within-subjects factor: Content type

Eligibility

Sex/Gender
ALL
Age
2 Years to 9 Years
Healthy volunteers
Yes

Inclusion criteria

* Pediatric patients aged 2-9 years * Currently admitted to or visiting Samsung Medical Center pediatric ward or outpatient clinic * Capable of cognitive communication as determined by experienced medical staff * Written informed consent from parent/legal guardian obtained * Verbal assent from child obtained (developmentally appropriate) * Not in acute emergency situation * Able to engage in stable interaction for at least 5 minutes in hospital environment

Exclusion criteria

* Diagnosis of moderate to severe developmental delay (language or cognitive) documented in medical records * Currently in isolation treatment (e.g., due to infectious disease) * Experiencing acute pain, fever, or medical procedures that make study participation difficult * Parent/guardian or child declined participation or withdrew consent

Design outcomes

Primary

MeasureTime frameDescription
Child Engagement LevelImmediately following each intervention session (assessed within 1 hour post-session)Behavioral observation checklist assessing attention to robot, participation in activities, and task involvement. Scored by trained observers using standardized coding scheme based on video recordings.
User ExperienceImmediately following each intervention session (approximately 5 minutes post-session)User Experience Questionnaire (UEQ) - standardized 7-point semantic differential scale measuring six dimensions: attractiveness, perspicuity, efficiency, dependability, stimulation, and novelty of robot interaction.
Robot PerceptionImmediately following each intervention session (approximately 5 minutes post-session)Godspeed Questionnaire Series - standardized scale measuring five dimensions of robot perception: anthropomorphism, animacy, likeability, perceived intelligence, and perceived safety.

Secondary

MeasureTime frameDescription
Content AppropriatenessWithin 2 weeks of session completion via video reviewExpert evaluation using 5-point Likert scale assessing developmental appropriateness, educational fit, robot speech pacing, content clarity, and activity flow. Evaluated by 5 pediatric development experts through video review.
Activity PreferenceImmediately following completion of both intervention sessions (approximately 5 minutes)Child interview using picture cards to identify preferred activities and content types (emotional support vs safety education). Children select and explain their preferences.
Content ComprehensionImmediately following each intervention session (approximately 3 minutes)Child interview assessing understanding of activity content, key messages, and learning points from each session using age-appropriate questions.
Robot Relationship QualityImmediately following intervention sessions (approximately 5 minutes)Child interview and behavioral observation assessing perceived intimacy with robot, emotional attachment, social bonding, and willingness to interact with robot again.

Countries

South Korea

Contacts

CONTACTYujin Seo
yoojin3747@gmail.com82+1090603747

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026