Participants in the intervention arm received a School-Based Environmentally Friendly Healthy Practices Program consisting of seven sessions. The program aimed to improve environmental awareness and sensitivity (environmental attitudes, environmental literacy, and recycling behaviors) as well as psychological well-being. In addition to the main program, participants engaged in a rhythmic exercise program for six weeks.

Participants in the control arm did not receive the School-Based Environmentally Friendly Healthy Practices Program. They continued their routine school activities.

Participants in the intervention arm received a School-Based Environmentally Friendly Healthy Practices Program consisting of seven sessions. The program aimed to improve environmental awareness and sensitivity (environmental attitudes, environmental literacy, and recycling behaviors) as well as psychological well-being. In addition to the main program, participants engaged in a rhythmic exercise program for six weeks.

The scale assesses environmental attitudes through cognitive, affective, and psychomotor dimensions. The scale consists of cognitive, affective, and psychomotor subscales. Each subscale is treated as a separate construct in line with the multidimensional conceptualization of environmental attitude. The cognitive subscale consists of 22 items, with possible scores ranging from 22 to 110. The affective subscale includes 17 items, and scores that can be obtained from this subscale range between 17 and 85. The psychomotor subscale comprises 20 items, with minimum and maximum possible scores of 20 and 100, respectively. High scores on the subscales indicate a high level of environmental attitude.

The scale evaluates the perceptions of secondary school students regarding recycling. The scale has three subscales: participation, valuing, and contribution to the economy. The scale does not have a total score. The obtainable scores for the subscales range from 5 to 25 for the participation subscale, 5 to 25 for the valuing subscale, and 5 to 20 for the contribution to the economy subscale. A high score obtained from the three subscales indicates a high level of recycling status.