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| ID | Type | Description | Link |
|---|---|---|---|
| NRF-2022R1A2C1011568 | Other Grant/Funding Number | National Research Foundation of Korea |
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The goal of this clinical trial is to learn if a mobile self-management program that combines Positive Psychology (PP) and Behavioral Activation (BA) helps reduce stress in young adults in South Korea. It will also examine how the program affects depression, anxiety, and resilience.
The main questions it aims to answer are:
Does the program lower stress levels in young adults with high stress?
Does the program improve other aspects of mental health, such as depression, anxiety, and resilience?
Researchers will compare the mobile program to a wait-list control group to see if the program works to improve stress management.
Participants will:
Be randomly assigned to either the program group or a wait-list control group
Use the mobile program for 4 weeks with guided activities, followed by 4 weeks of self-directed use
Complete surveys at the start, week 2, week 4, and week 8 about their stress, depression, anxiety, and resilience
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention group | Experimental | Participants receive a mobile self-management intervention that integrates Positive Psychology and Behavioral Activation. The program includes 4 weeks of guided sessions followed by 4 weeks of self-directed use. |
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| Wait-list Control | No Intervention | Participants do not receive the intervention during the first 8 weeks but are offered access to the program after the study period. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Mobile Self-Management Program integrated with Positive Psychology and Behavioral Activation | Behavioral | The mobile self-management program consisted of a 4-week guided intervention phase followed by a 4-week self-directed period to encourage continued use. The guided phase was organized around weekly objectives: (1) experiencing positive affect, (2) identifying personal strengths, (3) applying strengths in daily life, and (4) planning a positive future. Program activities included emotional check-ins, gratitude journaling, mindfulness practice, positive behavioral tasks, and goal setting. During the self-directed phase (Weeks 5-8), participants selected from 10 recommended activities tailored to their strengths, promoting sustained engagement and self-management. The program integrated Positive Psychology and Behavioral Activation strategies to reduce stress, enhance resilience, and foster positive behavioral change. |
| Measure | Description | Time Frame |
|---|---|---|
| Stress at Week 8 | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Week 8 |
| Measure | Description | Time Frame |
|---|---|---|
| Stress at Baseline | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| College of Nursing, The Catholic University of Korea | Seoul | Seoul | 06591 | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 42388766 | Derived | Oh D, Choi HS, Mohr DC, Na H. Effects of a mobile-based self-management program on mental health in young adults: a randomized controlled trial. Front Public Health. 2026 Jun 17;14:1830292. doi: 10.3389/fpubh.2026.1830292. eCollection 2026. |
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The study's informed consent form restricts use of data to this research only. Therefore, IPD will not be shared with other researchers.
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a score of ≥14 on the Perceived Stress Scale-10 (PSS-10)
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| ID | Title | Description |
|---|---|---|
| FG000 | Intervention Group | Participants receive a mobile self-management intervention that integrates Positive Psychology and Behavioral Activation. The program includes 4 weeks of guided sessions followed by 4 weeks of self-directed use. Mobile Self-Management Program integrated with Positive Psychology and Behavioral Activation: The mobile self-management program consisted of a 4-week guided intervention phase followed by a 4-week self-directed period to encourage continued use. The guided phase was organized around weekly objectives: (1) experiencing positive affect, (2) identifying personal strengths, (3) applying strengths in daily life, and (4) planning a positive future. Program activities included emotional check-ins, gratitude journaling, mindfulness practice, positive behavioral tasks, and goal setting. During the self-directed phase (Weeks 5-8), participants selected from 10 recommended activities tailored to their strengths, promoting sustained engagement and self-management. The program integrated Positive Psychology and Behavioral Activation strategies to reduce stress, enhance resilience, and foster positive behavioral change. |
| FG001 | Wait-list Control | Participants do not receive the intervention during the first 8 weeks but are offered access to the program after the study period. |
| Title | Milestones | Reasons Not Completed | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
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| ID | Title | Description |
|---|---|---|
| BG000 | Intervention Group | Participants receive a mobile self-management intervention that integrates Positive Psychology and Behavioral Activation. The program includes 4 weeks of guided sessions followed by 4 weeks of self-directed use. Mobile Self-Management Program integrated with Positive Psychology and Behavioral Activation: The mobile self-management program consisted of a 4-week guided intervention phase followed by a 4-week self-directed period to encourage continued use. The guided phase was organized around weekly objectives: (1) experiencing positive affect, (2) identifying personal strengths, (3) applying strengths in daily life, and (4) planning a positive future. Program activities included emotional check-ins, gratitude journaling, mindfulness practice, positive behavioral tasks, and goal setting. During the self-directed phase (Weeks 5-8), participants selected from 10 recommended activities tailored to their strengths, promoting sustained engagement and self-management. The program integrated Positive Psychology and Behavioral Activation strategies to reduce stress, enhance resilience, and foster positive behavioral change. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Secondary | Stress at Baseline | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Participants with available PSS-10 data at baseline were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Baseline |
|
From enrollment until completion of the 8-week study period.
All-cause mortality, serious adverse events, and other (non-serious) adverse events were monitored through non-systematic self-report during the study period. This was a non-clinical, community-based behavioral intervention delivered via a mobile self-management program without medical procedures or pharmacological treatment. Therefore, No adverse events were reported in either group.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Intervention Group | Participants receive a mobile self-management intervention that integrates Positive Psychology and Behavioral Activation. The program includes 4 weeks of guided sessions followed by 4 weeks of self-directed use. Mobile Self-Management Program integrated with Positive Psychology and Behavioral Activation: The mobile self-management program consisted of a 4-week guided intervention phase followed by a 4-week self-directed period to encourage continued use. The guided phase was organized around weekly objectives: (1) experiencing positive affect, (2) identifying personal strengths, (3) applying strengths in daily life, and (4) planning a positive future. Program activities included emotional check-ins, gratitude journaling, mindfulness practice, positive behavioral tasks, and goal setting. During the self-directed phase (Weeks 5-8), participants selected from 10 recommended activities tailored to their strengths, promoting sustained engagement and self-management. The program integrated Positive Psychology and Behavioral Activation strategies to reduce stress, enhance resilience, and foster positive behavioral change. |
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A key limitation of this study was participant attrition during the 8-week intervention period, as some participants did not complete all weekly or follow-up surveys. This loss to follow-up may have limited the ability to fully determine the intervention's effect over time and reduced the precision of longitudinal comparisons between groups.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Hyunjoo Na, Associate professor, PI | College of Nursing, The Catholic University of Korea | +82-2-3147-8442 | hjna@catholic.ac.kr |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Jun 30, 2025 | Sep 15, 2025 | Prot_SAP_000.pdf |
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| ID | Term |
|---|---|
| D000080032 | Psychology, Positive |
| ID | Term |
|---|---|
| D011584 | Psychology |
| D001525 | Behavioral Sciences |
| D004191 | Behavioral Disciplines and Activities |
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| Baseline |
| Stress at Week 2 | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Week 2 |
| Stress at Week 4 | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Week 4 |
| Depression (PHQ-9) at Baseline | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Baseline |
| Depression (PHQ-9) at Week 2 | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Week 2 |
| Depression (PHQ-9) at Week 4 | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Week 4 |
| Depression (PHQ-9) at Week 8 | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Week 8 |
| Anxiety (GAD-7) at Baseline | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Baseline |
| Anxiety (GAD-7) at Week 2 | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Week 2 |
| Anxiety (GAD-7) at Week 4 | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Week 4 |
| Anxiety (GAD-7) at Week 8 | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Week 8 |
| Resilience ( BRS) at Baseline | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Baseline |
| Resilience (BRS) at Week 2 | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Week 2 |
| Resilience (BRS) at Week 4 | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Week 4 |
| Resilience (BRS) at Week 8 | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Week 8 |
| BG001 | Wait-list Control | Participants do not receive the intervention during the first 8 weeks but are offered access to the program after the study period. |
| BG002 | Total | Total of all reporting groups |
| Participants |
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| Age, Continuous | Mean | Standard Deviation | years |
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| Sex: Female, Male | Count of Participants | Participants |
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| Race and Ethnicity Not Collected | Race and Ethnicity were not collected from any participant. | Count of Participants | Participants |
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| Region of Enrollment | Count of Participants | Participants |
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| Stress | Mean | Standard Deviation | units on a scale |
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| OG001 | Wait-list Control | Participants do not receive the intervention during the first 8 weeks but are offered access to the program after the study period. |
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| Secondary | Stress at Week 2 | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Participants with available PSS-10 data at week 2 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 2 |
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| Secondary | Stress at Week 4 | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Participants with available PSS-10 data at week 4 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 4 |
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| Secondary | Depression (PHQ-9) at Baseline | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Participants with available PHQ-9 data at baseline were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Baseline |
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| Secondary | Depression (PHQ-9) at Week 2 | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Participants with available PHQ-9 data at week 2 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 2 |
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| Secondary | Depression (PHQ-9) at Week 4 | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Participants with available PHQ-9 data at week 4 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 4 |
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| Primary | Stress at Week 8 | Stress was measured using the Korean version of the Perceived Stress Scale - 10 items (PSS-10). The total score ranges from 0 to 40, with higher scores indicating greater perceived stress. Although the scale does not provide a standardized cut-off, prior studies have used a score of 14 or higher to define moderate-to-high levels of stress, and this threshold was applied in the present study. | Participants with available PSS-10 data at week 8 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 8 |
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| Secondary | Depression (PHQ-9) at Week 8 | Depression was assessed using the Korean version of the Patient Health Questionnaire-9 items (PHQ-9). The PHQ-9 consists of nine items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 27, with higher scores indicating more severe depression. | Participants with available PHQ-9 data at week 8 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 8 |
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| Secondary | Anxiety (GAD-7) at Baseline | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Participants with available GAD-7 data at baseline were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Baseline |
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| Secondary | Anxiety (GAD-7) at Week 2 | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Participants with available GAD-7 data at week 2 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 2 |
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| Secondary | Anxiety (GAD-7) at Week 4 | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Participants with available GAD-7 data at week 4 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 4 |
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| Secondary | Anxiety (GAD-7) at Week 8 | Anxiety was measured using the Korean version of the Generalized Anxiety Disorder-7 items (GAD-7). The GAD-7 consists of seven items rated on a 4-point Likert scale (0 = not at all to 3 = nearly every day), assessing symptom frequency over the past two weeks. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. | Participants with available GAD-7 data at week 8 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 8 |
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| Secondary | Resilience ( BRS) at Baseline | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Participants with available BRS data at baseline were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Baseline |
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| Secondary | Resilience (BRS) at Week 2 | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Participants with available BRS data at week 2 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 2 |
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| Secondary | Resilience (BRS) at Week 4 | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Participants with available BRS data at week 4 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 4 |
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| Secondary | Resilience (BRS) at Week 8 | Resilience was assessed using the Korean version of the Brief Resilience Scale (BRS). The BRS consists of six items rated on a 5-point Likert scale (1 = strongly disagree to 5 = strongly agree). Total scores range from 6 to 30, with higher scores indicating greater resilience. | Participants with available BRS data at week 8 were included in the analysis. | Posted | Mean | Standard Deviation | score on a scale | Week 8 |
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| 0 |
| 92 |
| 0 |
| 92 |
| 0 |
| 92 |
| EG001 | Wait-list Control | Participants do not receive the intervention during the first 8 weeks but are offered access to the program after the study period. | 0 | 87 | 0 | 87 | 0 | 87 |
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