OUTCOMES |
Type of outcome
|
Outcome
|
Timepoint(s) at which outcome measured
|
Primary Outcome |
Changes in self-reported depression symptoms as measured by the Patient Health Questionnaire - 8 from baseline to 2-week follow-up. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Primary Outcome |
Changes in self-reported anxiety symptoms, measured by the Generalized Anxiety Disorder Screener - 7 from baseline to 2-week follow-up. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Primary Outcome |
Changes in self-reported happiness, as measured by the EPOCH Measure of Adolescent Well-Being - Happiness subscale. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Changes in self-reported depression symptoms as measured by the PHQ-8 for participants who meet a clinical cut-off for depression and anxiety symptoms - clinical cutoff will be determined by a score of 10 or greater on the GAD-7 or a score of 15 or greater on the PHQ-8. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Changes in self-reported anxiety symptoms as measured by the GAD-7 for participants who meet a clinical cut-off for depression and anxiety symptoms - clinical cutoff will be determined by a score of 10 or greater on the GAD-7 or a score of 15 or greater on the PHQ-8. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Moderator analysis on primary outcomes with level of anxiety symptoms as a continuous moderator. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Moderator analysis on primary outcomes with level of depression symptoms as a continuous moderator. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Moderator analysis on primary outcomes with level of anxiety symptoms as a categorical moderator - categories will be no-anxiety, 0-4 on GAD-7, mild-anxiety, 5-9 on the GAD-7, and moderate-to-severe anxiety, 10 or greater on the GAD - 7. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Moderator analysis on primary outcomes with level of depression symptoms as a categorical moderator - categories will be defined as minimal-or-none depression, defined as 0-4 on the PHQ-8, mild depression, defined as 5-9 on the PHQ-8, moderate depression, defined as 10-14 on the PHQ-8, moderately severe-to-severe depression, defined as greater than 15 on the PHQ-8. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
Baseline, 2-week follow-up |
Secondary Outcome |
Changes in average academic grade from school-term before participation to school-term after participation, as measured by the average grade overall, in math and science, and in humanities and languages, achieved by student across all enrolled students. As participants will be students from various classes and in various schools, student average grades will be rescaled, a mean of 60 and SD of 10 will be used in rescaling. Separate comparisons will be made between study skills and each of the three intervention conditions - growth, gratitude, and values. Additionally, the three intervention conditions will be compared to each other to determine their relative effects. |
School-term before participation - Term 1 2019, School-term during participation - Term 2 2019, School-term after participation - Term 3 2019 |
Secondary Outcome |
A feedback scale will be used to collect acceptability and feasibility data from participants. The youths will be asked questions on the usefulness of the program, whether they understood the contents of the program, whether they would recommend the program to a friend, the most and least helpful elements of the program, and their overall experience. They will also have the option to recommend changes to improve the program for future participants. |
Immediately post-intervention |