healthy children
Conditions
Interventions
Watch Me group. Participants used the Watch Me smartphone app, which implements evidence-based parent-training techniques (e.g., narration with praise), for 7 days. Parents performed and recorded dail
s daily screen time. Human support was limited to initial onboarding
no ongoing coaching and no push notifications were provided.
Active comparison group. Participants received psychoeducation and used a diary-only version of the app for 7 days. Parents logged the
s daily screen time but did not receive the parent-training components (narration with praise). Human support was limited to initial onboarding.
Sponsors
Tohoku University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: (1) Parent or guardian of an eligible child who provides informed consent to participate. (2) Child within the predefined age range. (3) Child has habitual daily screen use (TV, smartphone, tablet, etc.). (4) Parent owns a smartphone and is able to use the Watch Me app. (5) Able to understand instructions and complete the daily diary in Japanese.
Exclusion criteria
Exclusion criteria: (1) Child or parent has a serious medical or developmental condition that may affect screen time or parenting behaviors. (2) Currently participating in another similar intervention study. (3) Unable to use a smartphone or to maintain daily diary entries. (4) Otherwise judged ineligible by the principal investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Child's daily screen time (minutes/day) at the end of the 7-day intervention period, evaluated as the between-group difference adjusted for baseline screen time using analysis of covariance (ANCOVA). | — |
Secondary
| Measure | Time frame |
|---|---|
| All assessed as exploratory analyses based on data from the 7-day intervention period. (1) Association between app-recorded parenting behaviors (narration with praise) and change in child screen time; (2) day-level parent-child screen time coupling across the period; (3) association between child affect (happiness/boredom) during the intervention week and the magnitude of screen time reduction. | — |
Countries
Japan
Contacts
Public ContactMitsuyo Honnma
Tohoku University Graduate School of Information Sciences, T Institute of Development, Aging and Cancer,
Outcome results
None listed