| Experimental Condition 1
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 2
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Positivity component of ASCENT (an adaptation of a suite of evidence-based
positive psychology interventions that aims to help AYAs savor the good things in life,
use their strengths, and practice gratitude and kindness). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 3
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Being component of ASCENT (an adaptation of mindfulness training that aims
to help AYAs maintain contact with the present moment with an attitude of acceptance). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 4
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Being component of ASCENT (an adaptation of mindfulness training that aims
to help AYAs maintain contact with the present moment with an attitude of acceptance);
Positivity component of ASCENT (an adaptation of a suite of evidence-based positive
psychology interventions that aims to help AYAs savor the good things in life, use their
strengths, and practice gratitude and kindness). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 5
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Thinking component of ASCENT (an adaptation of cognitive restructuring that
aims to help AYAs identify, evaluate, and restructure their negative automatic thoughts
and core beliefs). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 6
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Thinking component of ASCENT (an adaptation of cognitive restructuring that
aims to help AYAs identify, evaluate, and restructure their negative automatic thoughts
and core beliefs); Positivity component of ASCENT (an adaptation of a suite of
evidence-based positive psychology interventions that aims to help AYAs savor the good
things in life, use their strengths, and practice gratitude and kindness). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 7
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Thinking component of ASCENT (an adaptation of cognitive restructuring that
aims to help AYAs identify, evaluate, and restructure their negative automatic thoughts
and core beliefs); Being component of ASCENT (an adaptation of mindfulness training that
aims to help AYAs maintain contact with the present moment with an attitude of
acceptance). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 8
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Thinking component of ASCENT (an adaptation of cognitive restructuring that
aims to help AYAs identify, evaluate, and restructure their negative automatic thoughts
and core beliefs); Being component of ASCENT (an adaptation of mindfulness training that
aims to help AYAs maintain contact with the present moment with an attitude of
acceptance); Positivity component of ASCENT (an adaptation of a suite of evidence-based
positive psychology interventions that aims to help AYAs savor the good things in life,
use their strengths, and practice gratitude and kindness) | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 9
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 10
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Positivity component of ASCENT (an adaptation of a suite of
evidence-based positive psychology interventions that aims to help AYAs savor the good
things in life, use their strengths, and practice gratitude and kindness). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 11
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Being component of ASCENT (an adaptation of mindfulness training that
aims to help AYAs maintain contact with the present moment with an attitude of
acceptance). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 12
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Being component of ASCENT (an adaptation of mindfulness training that
aims to help AYAs maintain contact with the present moment with an attitude of
acceptance); Positivity component of ASCENT (an adaptation of a suite of evidence-based
positive psychology interventions that aims to help AYAs savor the good things in life,
use their strengths, and practice gratitude and kindness). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 13
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Thinking component of ASCENT (an adaptation of cognitive
restructuring that aims to help AYAs identify, evaluate, and restructure their negative
automatic thoughts and core beliefs). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 14
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Thinking component of ASCENT (an adaptation of cognitive
restructuring that aims to help AYAs identify, evaluate, and restructure their negative
automatic thoughts and core beliefs); Positivity component of ASCENT (an adaptation of a
suite of evidence-based positive psychology interventions that aims to help AYAs savor
the good things in life, use their strengths, and practice gratitude and kindness). | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 15
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Thinking component of ASCENT (an adaptation of cognitive
restructuring that aims to help AYAs identify, evaluate, and restructure their negative
automatic thoughts and core beliefs); Being component of ASCENT (an adaptation of
mindfulness training that aims to help AYAs maintain contact with the present moment with
an attitude of acceptance) | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 | 
                            
                    | Experimental Condition 16
 | Feeling component of ASCENT (psychoeducation about AYA cancer survivorship and
depression); Doing component of ASCENT (an adaptation of behavioral activation that aims
to help AYAs engage in enjoyable activities, achieve their goals, and live in accordance
with their values); Thinking component of ASCENT (an adaptation of cognitive
restructuring that aims to help AYAs identify, evaluate, and restructure their negative
automatic thoughts and core beliefs); Being component of ASCENT (an adaptation of
mindfulness training that aims to help AYAs maintain contact with the present moment with
an attitude of acceptance); and Positivity component of ASCENT (an adaptation of a suite
of evidence-based positive psychology interventions that aims to help AYAs savor the good
things in life, use their strengths, and practice gratitude and kindness) | 
                                                        
                                Behavioral:                                 AYA Survivors Coping and Emotional Needs Toolkit (ASCENT)Participants will receive access to a digital depression self-management tool (ASCENT),
which aims to help AYAs manage symptoms of depression post-treatment. All users will have
access to the core tool which includes daily mood tracking and a psychoeducational module
about cancer and depression. Depending on assigned condition, participants will also
receive access to up to 4 intervention modules which have been adapted from existing
evidence-based treatments for digital delivery to AYAs through a rigorous user-centered
design process. Within each module there are 6 micro-lessons that include an educational
video, a real story from an AYA that demonstrates the topic, multiple choice questions
that ask the participant to apply the educational information to the AYA story,
open-ended questions that ask the participant to apply the educational information to
their own experience, and a practice activity in which they are asked to try out a
relevant skill.
 
 |