Aim 1: To adapt and enhance an existing text messaging intervention to an expanded two-way multi-media mobile phone messaging platform (Chorus) that will improve knowledge regarding the risk of late effects among AYA survivors, intent to seek recommended survivorship care, and completion of standard survivorship care goals. a. both two-way text messaging to improve Children?s Oncology Group (COG) survivorship guideline adherence b. web-based educational content for survivors of key survivorship messages regarding risk for late effects and need for ongoing survivorship care c. Monthly peer navigation phone calls to address barriers and promote retention d. utilization of pre and post-test questionnaires for participants to access and complete within the Chorus platform Aim 2: To test the acceptability and feasibility of the expanded mobile phone intervention content to improve messaging and strategies for survivorship care using qualitative methodologies and applying the Technology Acceptance Model (TAM) within a sample of AYA survivors. a. perceived usefulness of the text messaging system b. perceived ease of use of the text messaging system c. effect of the text messaging system on health-related behavior intent
