Measures self-reported symptoms related to cancer treatment, capturing physical, psychological and cognitive health. 5-point likert scale ranging from 0(almost never) to 4 (almost always); there is no weighting of items. Scores are transformed on a scale from 0 to 100. Items are reversed scored and linearly transformed to a 0-100 scale as follows: 0=100, 1=75, 2=50, 3=25, 4=0. Mean score is calculated= Sum of the items over the number of items answered.

Total Score is used and calculated by: Sum of all the items over the number of items answered on all the Scales. Higher scores indicate lower problems.

The PROMIS Anxiety instruments measure self-reported fear (fearfulness, panic), anxious misery (worry, dread), hyperarousal (tension, nervousness, restlessness), and somatic symptoms related to arousal (racing heart, dizziness). 5-point Likert scale ranging from 1 (never) to 5 (almost always); there are 8 questions in this measure. First a raw total score is calculated by added up the values to each question, ranging from 5-40. The total raw score is then converted into a T-score using the conversion table. The T-score rescales the raw score into a standardized score with a mean of 50 and a standard deviation (SD) of 1. A higher PROMIS T-score represents more of the concept being measured, in this case, anxiety symptoms.

The PROMIS Anger instruments measure self-reported angry mood (irritability, frustration), negative social cognitions (interpersonal sensitivity, envy, disagreeableness), and efforts to control anger. This measure includes 5 questions. 5-point Likert scale ranging from 1 (never) to 5 (almost always) First a raw total score is calculated by added up the values to each question, ranging from 5-25. The total raw score is then converted into a T-score using the conversion table. The T-score rescales the raw score into a standardized score with a mean of 50 and a standard deviation (SD) of 1. A higher PROMIS T-score represents more of the concept being measured, in this case, anger.

The PROMIS Depression instruments assess self-reported negative mood (sadness, guilt), views of self (selfcriticism, worthlessness), and social cognition (loneliness, interpersonal alienation), as well as decreased positive affect and engagement (loss of interest, meaning, and purpose). Somatic symptoms (changes in appetite, sleeping patterns) are not included. The Depression short form is universal rather than disease-specific. This measure includes 8 questions. 5-point Likert scale ranging from 1 (never) to 5 (almost always). It assesses depression over the past seven days. First a raw total score is calculated by added up the values to each question, ranging from 5-40. The total raw score is then converted into a T-score using the conversion table. The T-score rescales the raw score into a standardized score with a mean of 50 and a standard deviation (SD) of 1. A higher PROMIS T-score represents more of the concept being measured, in this case, depression symptoms.

Self-reported symptom screening questionnaire asking pediatric patients (age 8-18) how bothered they are by 15 identified symptoms and side effects of cancer treatment. This 5-point Likert scale score from 0 (not bothered at all) to 4 (extremely bothered), and has a total score ranging from 0-60, with a higher number indicating more bother cancer-related symptoms. Likert scores will be summed for a total score that ranges from 0 (none) to 60 (worst possible).

Acceptability of the yoga program will be measured using a 5-point Likert scale at week 10. At each assessment point (week 1, week4, 5, or 6 and week 10), participants will be interviewed using open-ended questions to assess their views of the program. Likert items score from 1(strongly agree) to 5(strongly disagree) a higher score indicating greater acceptability of the yoga program.

The PROMIS Fatigue instruments evaluate a range of self-reported symptoms. Fatigue is divided into the experience of fatigue (frequency, duration, and intensity) and the impact of fatigue on physical, mental, and social activities. The Fatigue short form is universal rather than disease-specific. It assesses fatigue over the past seven days This measure includes 10 questions. 5-point Likert scale ranging from 1 (never) to 5 (almost always).First a raw total score is calculated by added up the values to each question, ranging from 5-50. The total raw score is then converted into a T-score using the conversion table. The T-score rescales the raw score into a standardized score with a mean of 50 and a standard deviation (SD) of 1. A higher PROMIS T-score represents more of the concept being measured, in this case, depression symptoms.