EmoTIChealth: Promoting Adolescent Health Through a Serious Game.

KIDSCREEN-27. This scale consists of 27 items in 5 subscales. Physical well-being, mood, family life, school life, peer relations. Scores range from 27 to 135. Higher scores indicate a higher quality of life in general and in each of the subscales.

First measurement: After the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement, the second measurement of the same variable was carried out.

Third measurement: POST Up to 4 weeks after the second measurement, the third measurement of the same variable was carried out. [Time Frame: Baseline up to 8 weeks]

SDQ: This questionnaire is used to assess the possible presence of psychopathology and the emotional and behavioral adjustment of adolescents. It is a 25-item Likert-type (1-3) questionnaire. The items of this questionnaire are divided into 5 subscales: emotional symptomatology, conduct problems, hyperactivity, peer problems and prosocial behavior. Higher scores on each scale indicate greater difficulties.

First measurement: After the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement, the second measurement of the same variable was carried out.

Third measurement: POST Up to 4 weeks after the second measurement, the third measurement of the same variable was carried out.

EAQ-30: This questionnaire consists of 30 Likert-style items (1-False to 3-True), and aims to identify how adolescents think about their feelings, as well as the degree to which they feel them and the ability to express them. In addition to an overall score, this tool is composed of 6 subscales that attempt to describe different aspects of emotional functioning. Higher scores indicate greater use of emotional awareness and regulation strategies.

First measurement: After the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement, the second measurement of the same variable was carried out.

Third measurement: POST Up to 4 weeks after the second measurement, the third measurement of the same variable was carried out.

CAG: This questionnaire aims to measure self-concept in adolescents from a multidimensional perspective. It consists of 48 Likert-type response items ranging from 1 to 5, providing a score range of 48 to 240. Physical Self-Concept, Social Acceptance, Family Self-Concept, Intellectual Self-Concept, Personal Self-Assessment, and Sense of Control. The questionnaire provides an overall self-concept score, as well as scores for 6 subdimensions: Higher scores indicate higher self-concept.

This is the first measurement. After obtaining the participant's informed consent, we assessed the initial score for this outcome.

The second measurement, labeled PRE, was conducted up to 4 weeks after the first measurement of the same variable.

The third measurement, labeled POST, was carried out up to 4 weeks after the second measurement.

Social Problem-Solving Inventory- Revised (SPSI-R). This questionnaire attempts to reflect the cognitive, affective and behavioral responses to the problems of daily life or the different difficulties we try to solve. This reduced version consists of 25 Likert-type items, grouped into the following 5 dimensions: Rational problem solving, Avoidant style, Impulsive style, Positive problem orientation and Negative problem orientation. Higher scores on each dimension signify the coping style used by the adolescent.

First measurement: After the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement, the second measurement of the same variable was carried out.

Third measurement: POST Up to 4 weeks after the second measurement, the third measurement of the same variable was carried out.

CHASO: It consists of 40 Likert-type response items ranging from 1 to 5 (1 - Very uncharacteristic of me; 5 - Very characteristic of me) and assesses a total of 10 skills: 1. Interacting with strangers; 2. Dealing with criticism; 4. Interacting with people I am attracted to; 5. Staying calm in the face of criticism; 6. Public speaking/interacting with superiors; 7. The scores for each of these skills are calculated from the sum of the items that make them up. Higher scores indicate higher social skills.

First measurement: After the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement, the second measurement of the same variable was carried out.

Third measurement: POST Up to 4 weeks after the second measurement, the third measurement of the same variablewas carried out.

The Brief Illness Threat Questionnaire (BIP-Q) is used, which consists of 5 items with a Likert scale from 0 to 10. This questionnaire mainly assesses consequences of the illness, duration of the illness, identity, worry about the illness and emotional impact of the illness. The scale is interpreted so that the higher the score, the greater the sense of perceived threat.

First measurement: After the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement, the second measurement of the same variable was carried out.

Third measurement: POST Up to 6 weeks after the second measurement, the third measurement of the same variable was carried out.

Psychoeducation of the disease: the ECODI Diabetes knowledge scale will be used to assess this variable. This scale consists of 25 items and four dimensions: basic knowledge and self-care, laboratory values, diet and physical exercise. It is a scale that is corrected by the number of hits and misses. Psychoeducation about the disease: The ECODI diabetes knowledge scale is used to assess this variable. This scale consists of 25 items and four dimensions: basic knowledge and self-care, laboratory values, diet and exercise. It is a scale that is corrected by the number of hits and misses.

Connor-Davidson Resilience Scale to assess the ability to cope with stress and adversity. The resilience scale is made up of 10 items, with a range of scores from 0 to 40, with higher scores indicating greater resilience.

First measurement: Once the participant had signed the informed consent, the initial score for this outcome was assessed.

Second measurement: PRE- Up to 4 weeks after the first measurement the second measurement of the same variable was carried out.

Third measurement: POST Up to 4 weeks after the second measurement the third measurement of the same variable was carried out.

A self-report questionnaire specifically developed for this study will be used to assess adolescents' perceived importance of maintaining healthy habits. The instrument consists of 16 Likert-type items (1 = Not important at all to 5 = Extremely important) that evaluate three domains:

• Nutrition (e.g., balanced diet, regular meal patterns).
• Hygiene (e.g., daily personal hygiene routines).
• Physical exercise (e.g., regular engagement in physical activity).
• Healthy sleep habits (e.g. sleeping at least 8 hours, having a defined schedule.) Higher scores indicate greater perceived importance attributed to healthy behaviors across the three domains, with a total score ranging from 16 to 80. Subscale scores will also be calculated for each domain.

First measurement (T1): Baseline, after informed consent. Second measurement (T2): Approximately 4 weeks after baseline (pre-intervention re-assessment).

Third measurement (T3): Approximately 4 weeks after T2 (post-intervention assessment)

These items aim to assess the intervention from the perspective of adolescents, specifically in terms of the extent to which it has helped them in different areas of their daily lives. There will be a total of 13 Likert-type items ranging from 0 (it has not helped me at all) to 10 (it has helped me a lot). These items will only be collected at the final time point (T3), i.e. after the intervention has been completed.

The degree of difficulty experienced in their lives and their emotional state will also be evaluated using six Likert scale items ranging from 0 to 10. Information on these difficulties and emotional state assessments will be collected at the three assessment points (T1, T2 and T3).

First measurement (T1): Baseline, after informed consent. Second measurement (T2): Approximately 4 weeks after baseline (pre-intervention re-assessment).

Third measurement (T3): Approximately 4 weeks after T2 (post-intervention assessment).