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ID
Source
Health condition
Overweight; obesity
Sponsors and support
Intervention
Outcome measures
Primary outcome
water consumption
Secondary outcome
sugar-sweetened beverage consumption
Background summary
This study investigates the effectiveness of an improved social network intervention promoting water consumption among young adolescents. Participants will be randomly assigned to either the social network condition, mass media intervention condition or control condition (no intervention). The social network condition consists identifying influence agents and train them to promote water drinking among their peers. In the mass media intervention condition focusing on water intake, a researcher will give a presentation in the classrooms about the benefits of drinking water. In addition, we will spread the videos and pictures about the benefits of drinking water. Smartphones will be used to send the participants questionnaires to measure their consumption behavior and social network. The smartphone will also be used to measure their exposure to the pictures and videos about the behavior.
Study design
Consumption behavior will be measured at baseline (feb-april) pre- (april-june) and post-intervention (may-july)
Intervention
In the social network-based intervention condition focusing on water intake, peer
nomination questions will be used to identify the most influential classmates at baseline. These participants will be trained as influence agents to
promote water consumption within their social networks. The training of the influence agents is
based on Self-Determination and Self-Persuasion Theory. The aim of the training
is to provide the influence agents the knowledge (i.e., benefits of the behaviour) and skills to
promote water consumption within their social networks. They can promote the behaviour
through modelling, messaging, and through self-developed and selected videos and pictures about
the benefits of drinking water.
In the mass media intervention condition focusing on water intake, a researcher will
give a presentation in the classrooms about the benefits of drinking water. In addition, we will
spread the videos and pictures about the benefits of drinking water as in the social network-based condition
Inclusion criteria
Young adolescents between the ages of 9 and 16 years old and attending normal education
Exclusion criteria
Ages that do not correspond with our inclusion age range and partcipants attending special education
Design
Recruitment
Followed up by the following (possibly more current) registration
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Other (possibly less up-to-date) registrations in this register
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In other registers
| Register | ID |
|---|---|
| NTR-new | NL6905 |
| NTR-old | NTR7100 |
| Other | European Research Council : 617253 |