NCT07654686

Brief Summary

This study aimed to evaluate the effect of a climate change awareness education program on knowledge, attitudes, and behaviors among secondary school students. The study was conducted as a cluster randomized controlled trial in a public secondary school in Istanbul, Türkiye.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 16, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 16, 2026

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

June 12, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 17, 2026

Completed
Last Updated

June 17, 2026

Status Verified

June 1, 2026

Enrollment Period

3 months

First QC Date

June 12, 2026

Last Update Submit

June 12, 2026

Conditions

Keywords

Climate change awarenessEnvironmental health educationHealth educationCluster randomized controlled trialEnvironmental attitudeEnvironmental behavior

Outcome Measures

Primary Outcomes (2)

  • Change in Climate Change Awareness Score

    Students' climate change awareness was assessed using the Climate Change Awareness Scale for Secondary School Students. The scale consists of 16 items and two subdimensions: cognitive awareness and behavioral awareness. Items are scored on a 5-point Likert scale. Total scores range from 16 to 80, with higher scores indicating higher climate change awareness.

    Baseline and two weeks after completion of the intervention

  • Change in Environmental Attitude Score

    Students' environmental attitudes were assessed using the Environmental Attitude Scale for Secondary School Students. The scale consists of two subscales. The first subscale includes 14 items measuring environmental behaviors, and the second subscale includes 21 items measuring environmental feelings, thoughts, and willingness to act. The total score ranges from 35 to 175, with higher scores indicating more positive environmental attitudes and environmentally responsible behaviors.

    Baseline and two weeks after completion of the intervention

Study Arms (2)

Climate Change Awareness Education Group

EXPERIMENTAL

Participants in the intervention group received a structured climate change awareness education program delivered in the classroom setting. The program included three educational sessions supported by visual educational materials, reminder posters, interactive quizzes, and eco-friendly reinforcement materials. The intervention aimed to improve secondary school students' climate change awareness, environmental attitudes, and environmentally responsible behaviors.

Behavioral: Climate Change Awareness Education Program

Control Group

NO INTERVENTION

Participants in the control group continued their routine education and did not receive any climate change awareness education during the data collection period. After completion of the post-test measurements, the education program was also provided to the control group.

Interventions

The intervention consisted of a structured, multi-component climate change awareness education program developed for seventh-grade secondary school students. The program included classroom-based educational sessions, visual reminder posters, interactive quizzes, and eco-friendly reinforcement materials such as pencils, cloth bags, and flower seeds. Educational topics included the definition and causes of climate change, the difference between weather and climate, the greenhouse effect, greenhouse gases, environmental and human impacts of climate change, climate change effects in Türkiye, zero waste, carbon footprint, water and energy conservation, recycling, and individual actions to combat climate change.

Climate Change Awareness Education Group

Eligibility Criteria

Age12 Years - 13 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Being enrolled in the seventh grade of the secondary school where the study was conducted
  • Being able to speak and understand Turkish
  • Having written informed consent from a parent or legal guardian
  • Being willing to participate in the study

You may not qualify if:

  • Having a physical or cognitive impairment that prevents communication, watching the educational materials, or completing the measurement tools
  • Having long-term absenteeism that would prevent regular participation in the education sessions during the study period
  • Not having written informed consent from a parent or legal guardian
  • Not being willing to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul Medeniyet University

Istanbul, Istanbul, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Health BehaviorHealth Education

Condition Hierarchy (Ancestors)

BehaviorAdherence InterventionsMedication AdherencePatient CompliancePatient Acceptance of Health CareTreatment Adherence and Compliance

Study Officials

  • Aynur Aytekin Özdemir

    İstanbul Medeniyet University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Due to the nature of the educational intervention and self-reported outcome assessments, participants and the researcher could not be blinded. To reduce selection bias, classroom-level randomization was performed after completion of baseline measurements.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This study used a cluster randomized parallel-group design. Randomization was conducted at the classroom level to reduce the risk of contamination between students.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

June 12, 2026

First Posted

June 17, 2026

Study Start

November 1, 2025

Primary Completion

January 16, 2026

Study Completion

January 16, 2026

Last Updated

June 17, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared due to the involvement of minor participants and confidentiality restrictions.

Locations