Meaning and purpose will be measured by the PROMIS Pediatric Meaning and Purpose Short Form-8. Items are rated on a five-point Likert scale ranging from "1, not at all" to "5, very much", with total scores ranging from eight to 40 (higher scores indicating greater sense of reason for living, goal direction, and hopefulness).

...scores range from 8 to 40 (higher scores indicate greater fear, anxious misery, and hyperarousal).

The 8-item scale of depressive symptoms has scores ranging from 8 to 40 with higher scores indicating greater depressive symptoms. Total anxiety and total depression T-scores will be used in analyses.

Fatigue over the past seven days will be measured with the PROMIS Pediatric Fatigue Short Form-10. Items are rated on a five-point Likert scale ranging from "1, never" to "5, almost always", with total scores ranging from 10 to 100 (higher scores indicating greater subjective feeling of tiredness, exhaustion and perception that fatigue interferes with daily function).

Pain intensity over the past seven days will be measured with the PROMIS Pediatric Numeric Rating Scale - Pain Intensity, measured on an 11-point scale with anchors "0, No Pain" to "10, worst pain you can think of".

Positive affect will be assessed by the PROMIS Pediatric Positive Affect Short Form-8. Items are rated on a five-point Likert scale ranging from "1, never" to "5, always", with total scores ranging from eight to 40 (higher scores indicating greater momentary positive affect, such as contentment, happiness, engagement, an excitement).

Depressive symptoms will be assessed by the PROMIS Pediatric Depressive Symptoms Short Form-8. Items are rated on a five-point Likert scale ranging from "1, never" to "5, almost always", with total scores ranging from eight to 40 (higher scores indicating greater negative mood, self-evaluation, and cognitions).

Anxiety will be assessed by the PROMIS Pediatric Anxiety Short Form-8. Items are rated on a five-point Likert scale ranging from "1, never" to "5, almost always", with total scores ranging from eight to 40 (higher scores indicating greater fear, hyperarousal, and anxiety-associated somatic symptoms).

Self-identity after cancer will be assessed with a four-item measure in which participants rate the degree to which they identify with four descriptions of relating to their past cancer experience. The five-point Likert scale ranges from "1, not at all" to "5, very much". Each item is used scored and used independently.

Identity status will be assessed via the 64-item Extended Objective Measure of Ego Identity Status-2. Participants rate each item on a 6-point Likert scale ranging from "1, strongly disagree" to "6, strongly agree", with total scores ranging from score of 64 to 384 (when measured on a continuous). Scores from this measure will be used to categorize participant identity status into one of four theoretically and empirically derived identity statuses and will also be used as a continuous variable, with higher scores indicating more mature identity status.

Daily pain intensity over the previous 24 hours will be measured with the PROMIS Pediatric Numeric Rating Scale - Pain Intensity v 1.0, measured on an 11-point scale with anchors "0, No Pain" to "10, worst pain you can think of". Daily pain intensity will be assessed over a 10-day period via daily diary.

Daily fatigue over the past 24 hours will be measured with an 11-point 0 - 10 Numeric rating scale ranging from anchors of "not at all tired" to "very tired". Daily fatigue will be assessed over a 10-day period via daily diary.

Daily affect over the past 24 hours will be assessed with Positive and Negative Affect Scale (PANAS), a 20-item measure in which participants rate the degree to which they have experienced each positive and negative emotion on a five-point Likert scale ranging from "1, Very slightly or Not at all" to "5, Extremely". Total scores for the Positive Affect Subscale and Negative Affect subscale range from 1 to 10. A "relative negative mood" index will be calculated for each participant whereby days in which the participant's negative affect score was greater than .5 standard deviations from that participant's 7-day mean negative affect scores will be designated as a "relative negative mood" day. Similarly, a "relative positive mood" index will be calculated for each participant whereby days in which the participant's positive affect score was greater than .5 standard deviations from that participant's 7-day mean positive affect scores will be designated as a "relative positive mood" day.

Each day for a consecutive 10-day period, participants will report the time they went to bed the previous night, the time they attempted to fall asleep, sleep onset delay, number of night awakenings, and that days' time that they awoke in the morning, time they got out of bed, the number of naps and duration of daytime sleep that day. They will also provide a subjective sleep quality rating using an 11-point 0 - 10 Numeric Rating Scale ranging from "0, extremely poor sleep" to "10, extremely good sleep".

Each day for a consecutive 10-day period, participants' relative daily activity will be assessed with a form created for this study. Participants will rate the degree to which they engaged in five activities relative to their typical activity level. Responses are rated on an 11-point 0 - 10 NRS from "no, much less than usual" to "yes, much more time than usual".