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Healthy ChildrenBio-ExploNCT07147634

Outdoor Science Education and Child Well-being in Primary Schools: Protocol for a Cluster Randomized Controlled Trial on Learning, Connection to Nature, Eco-anxiety, and Stress

A study testing Outdoor science education and Indoor classroom-based science education in people with Healthy Children, run by Université de Sherbrooke at 1 site in Canada.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The goal of this randomized controlled trial is to learn if an outdoor science education intervention can improve primary school students' learning and well-being when compared to an indoor classroom-based science education intervention. Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Healthy Children
What is being tested?
Outdoor science education and Indoor classroom-based science education
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,000 participants
Where
1 siteCanada
Study dates
2 Sep 2025to Nov 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Primary schools need to have a deprivation index equal to or superior to 1 (with 10 being the maximum) and be located in Montreal, Longueuil or Laval (QC).
  • Teachers have to show some interest in outdoor education but are not obliged to have already done some before in order to be included.
  • Only 5th and 6th grade teachers are included.
  • Primary schools with two teachers interested in participating in the project.

Who cannot join

  • Alternative schools or those welcoming recently arrived non-Francophone students are not included.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Gabriela Quintela Do Carmo contact

803-477-7554

quig1988@usherbrooke.ca

Canada1 site, 1 recruiting
  • Greater Montreal area (Laval, Longueuil, Montreal)

    Montreal, Quebec

    Gabriela Quintela Do Carmo, 803-477-7554, quig1988@usherbrooke.ca

    Recruiting

Other trials in Canada

About this study

The goal of this randomized controlled trial is to learn if an outdoor science education intervention can improve primary school students' learning and well-being when compared to an indoor classroom-based science education intervention. The main questions it aims to answer are:

  • Will students who engage in outdoor science learning produce higher-quality observations of living organisms than students who receive instruction exclusively in an indoor, classroom-based context, when both groups are invited to make observations in an unfamiliar natural environment?
  • Does an outdoor education intervention embedded within the science curriculum contribute to children's connection to nature, eco-anxiety and stress?
Read more

Participants will:

  • Receive a science education intervention 2h/week for a total of 5 weeks, either indoors or outdoors
  • Answer questionnaires before and after the intervention
  • Participate in a field day-trip after the intervention where they will be asked to observe living organisms.
Being tested
Outdoor science education, Indoor classroom-based science education
Keywords
Stress, School-Based Intervention, Cluster Randomized Controlled Trial, Primary School, Connection to Nature, Eco-anxiety, Science Learning, Outdoor Education

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Outdoor science educationBehavioural

    Following Québec's mandatory curriculum, primary school teachers will provide life science lessons 2h/week for a total of 5 weeks in an outdoor setting

  • Indoor classroom-based science educationBehavioural

    Following Québec's mandatory curriculum, primary school teachers will provide life science lessons 2h/week for a total of 5 weeks inside the classroom

Study groups in NCT07147634
Study groupRoleWhat they receive
Outdoor science educationExperimental2h of outdoor science education intervention per week for a total of 5 weeks (following Québec's mandatory curriculum)
Receives: Behavioral: Outdoor science education
Indoor classroom-based science educationActive comparator2h of indoor science education intervention per week for a total of 5 weeks (following Québec's mandatory curriculum)
Receives: Behavioral: Indoor classroom-based science education

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Score on the Scientific Observation Skills Rubric (0-15) in a Novel Environmental Context

    Students' scientific observation skills will be assessed using a structured observation rubric designed for elementary science education. After the 5-week intervention, each student will spend one day in a new environmental context (field activity at the end of October). Students will be asked to make a total of five oral observations of living organisms in this setting. Independent raters, trained in the use of the rubric, will evaluate the quality of each scientific observation using a four-level scoring framework, with scores ranging from 0 (lowest) to 3 (highest quality of scientific observation). The total score will range from 0 to 15, with higher scores indicating stronger scientific observation skills. Inter-rater agreement will be monitored to ensure reliability.

    Measured: After the 5-week intervention has ended, students will spend one day in a new environmental context (at the end of October) in order to make observations

Secondary outcomes (4)
  1. Connection to nature - Score on the Inclusion of Nature in Self Scale (0-7)

    Students' connection to nature will be assessed using the Inclusion of Nature in Self Scale (Schultz, 2001, as used in Braun \& Dierkes, 2016), a validated 1-item self-report questionnaire appropriate for culturally and ethnically diverse samples of children. The item is rated on a 7-point scale (1 = nature and self do not overlap at all to 7 = nature and self completely overlap). The total score ranges from 0 to 7, with higher scores indicating a stronger subjective connection to nature. The Inclusion of Nature in Self Scale will be administered at baseline and again immediately after the 5-week intervention.

    Measured: At baseline and immediately after the 5-week intervention has ended

  2. Score on the Perceived Stress Scale for Children (PSS-C; range 0-39)

    Students' perceived stress will be assessed using the Perceived Stress Scale for Children (PSS-C), which is a standardized 13-item self-report questionnaire previously tested on a sample of Canadian children (White, 2014). Each item is rated on a 4-point Likert scale (0 = never to 3 = a lot). Scores are summed to produce a total ranging from 0 to 39, with higher scores indicating greater perceived stress. The questionnaire will be administered in class at baseline and immediately after the 5-week intervention.

    Measured: At baseline and immediately after the 5-week intervention has ended

  3. Score on the 11-item Hogg Eco-Anxiety Scale (HEAS-13; range 0-33)

    Students' eco-anxiety will be assessed using the Hogg Eco-Anxiety Scale (HEAS-13; Hogg et al., 2021), a validated 11-item self-report questionnaire. Each item is rated on a 4-point Likert scale (0 = never to 3 = almost every day). Scores are summed to produce a total ranging from 0 to 33, with higher scores indicating greater subjective feelings of eco-anxiety. The HEAS-13 will be administered in class at baseline and immediately after the 5-week intervention.

    Measured: At baseline and immediately after the 5-week intervention has ended

  4. Score on the Basic Psychological Needs Satisfaction Scale - School Version (range 0-36)

    Students' satisfaction of the three basic psychological needs identified by Self-Determination Theory (autonomy, competence, and relatedness) will be assessed with a 9-item version of the Basic Psychological Needs Satisfaction Scale, adapted for children. Each item is rated on a 5-point Likert scale (0 = almost never to 4 = almost always). Total scores range from 0 to 36, with higher scores indicating greater satisfaction of basic psychological needs.

    Measured: Baseline and immediately after the 5-week intervention

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Aug 2025
  2. Study start2 Sep 2025
  3. Primary completionNov 2026 (estimated)
  4. Study completionNov 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Model description
The science education intervention consists of teaching Québec's mandatory science curriculum, focusing on life science topics and issues.
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
1,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07147634
Sponsor's protocol ID
2023-3453
Other IDs
435-2022-0651
Acronym
Bio-Explo
Status last verified
Dec 2025
First submitted
15 Aug 2025
Last updated
31 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Due to ethical considerations and to protect participant confidentiality, no de-identified individual participant data will be made available. Only aggregate results will be published.

Questions about this trial

What is this clinical trial studying?

A study testing Outdoor science education and Indoor classroom-based science education in people with Healthy Children, run by Université de Sherbrooke at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 31 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Gabriela Quintela Do Carmo (803-477-7554, quig1988@usherbrooke.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Score on the Scientific Observation Skills Rubric (0-15) in a Novel Environmental Context (time frame: After the 5-week intervention has ended, students will spend one day in a new environmental context (at the end of October) in order to make observations). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Dec 2025.

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