Happy Homework 2.0: Effects on 24-hour Movement Behaviours in Children

NCT07631754 | Completed

• 1 other identifier: 17984
• Study Type: interventional
• Target: 82
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of this research is to trial a new version of Happy Homework (HH) on children and parent health outcomes. HH was previously a paper-based 8-week program designed to encourage positive eating habits, physical activity, and healthy sleep routines among children at home. By working together, investigators are aiming make sure HH is easy to use, that it reduces teachers' workload, and enable the students to easily track and engage with HH. We also hope that this will all help contribute to the students meeting 24-hour movement behaviour targets. Children are invited to participate in the research study. In the study investigators are going to examine children's activity behaviour profiles, and the following measures will be taken:

• Physical activity levels
• Sedentary behaviours
• Sleep duration
• Body mass index (which can be self-reported by the child). These measures will be conducted at two time-points; (1) 1 week before the intervention begins and (2) 1 week after the intervention. Should children agree to participate in the study; children will wear an accelerometer on their non-dominant wrist and a small device on their right thigh for 8 consecutive days at both time points, along with having their height and weight recorded (the child can self-report this information).

Conditions

Healthy Children

Keywords

Physical Activity; Sedentary Behaviour; Sleep; School-based health intervention; homework; Health Behaviours; 24-hour movement behaviours

Outcome Measures

Primary Outcomes (4)

• Feasibility of the Happy Homework 2.0 App

  The feasibility of the program was evaluated through recruitment, retention and attrition rates. Recruitment rate was equated by calculating the percentage of children present at baseline testing out of those who were eligible at participating schools. Attrition rate was estimated by analysing the overall drop-out rate, and differences between the control and intervention groups at post-intervention.

  Baseline and 8 weeks.

• Usability of the Happy Homework 2.0 App

  Usability was measured via uptake and engagement of the HH 2.0 activities tracked via Google analytics.

  Tracked from baseline to 8 weeks.

• Acceptability of the Happy Homework 2.0 App

  Intervention acceptability was computed by considering HH activity completion. Completion rate of activities was recorded within the HH app.

  Tracked from baseline to 8 weeks.

• Acceptability of the Happy Homework 2.0 App

  Acceptability was further evaluated through post-intervention feedback questionnaires provided to participating children, their parents/carers and classroom teachers. Items capturing perception of engagement, usability and areas for improvement were gathered using a 5-point Likert scale, with two open-text statements also included. The Likert scale was based on 1 (strongly disagree) to 5 (strongly agree), with three different variations used for teachers, parents and children to ensure appropriateness and contextual relevance.

  At 8 weeks.

Secondary Outcomes (4)

• To assess the efficacy of the Happy Homework 2.0 app for improving 24-hour movement behaviours - physical activity.

  At baseline and again at 8 weeks.

• To assess the efficacy of the Happy Homework 2.0 app for improving 24-hour movement behaviours - sedentary behaviour.

  At baseline and again at 8 weeks.

• To assess the efficacy of the Happy Homework 2.0 app for improving 24-hour movement behaviours - sleep.

  At baseline and again at 8 weeks.

• To examine the efficacy of the Happy Homework 2.0 app in changing levels of motivation via basic psychological need satisfaction.

  At baseline and again at 8 weeks.

Study Arms (2)

Happy Homework Arm

EXPERIMENTAL

The participants randomised to receive the Happy Homework intervention.

Behavioral: Happy Homework 2.0

Control arm

NO INTERVENTION

Group continue on as normal receiving no intervention.

Interventions

Happy Homework 2.0 BEHAVIORAL

Group to receive the Happy Homework 2.0 intervention which assessed physical activity, sedentary behaviour and sleep.

Also known as: HH

Happy Homework Arm

Eligibility Criteria

• Age: 8 Years - 12 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may qualify if:

• children aged 8-12 years old. Hold the ability to carry out homework tasks via digital platform, mostly independently.

You may not qualify if:

• children outwith the age range.

Sponsors & Collaborators

• University of the West of Scotland: lead

Study Sites (1)

The University of the West of Scotland

Blantyre, South Lanarkshire, G720LH, United Kingdom

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
• Masking Details: Allocation of group assignment will be concealed from the participants and primary researcher until after baseline testing with the researcher overseeing the randomisation task not involved with recruitment.
• Purpose: PREVENTION
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD researcher

Model Details: Clusters will be randomised to either (1) the HH app intervention, or (2) control group via a computerised number generator. Allocation of group assignment will be concealed from the primary researcher until after baseline testing with the researcher overseeing the randomisation task not involved with recruitment.

Study Record Dates

• First Submitted: May 20, 2026
• First Posted: June 8, 2026
• Study Start: March 19, 2025
• Primary Completion: December 10, 2025
• Study Completion: December 10, 2025
• Last Updated: June 8, 2026

Record last verified: 2026-06

Data Sharing

• IPD Sharing: Will not share

Locations

GB (1)