Emotions and Cognitions in Pediatric Chronic Physical Conditions

The research project will be conducted as a non-medical intervention study, based on a mixed method and action-research principles (Bradbury \& Lifvergren, 2016; Ivankova \& Wingo, 2018; Malengreaux et al., 2020; Marshall et al., 2006). It will include a systematic literature review, quantitative (standardized questionnaires, self and hetero-reports) and qualitative measures (dialogues and discussions, semi-directed interviews, audio-recordings, observations, written reports). The effectiveness study of PART II of the research project will be carried out as randomized controlled trial but is not described in this registration. PART 1 Phase I.a: A systematic literature review is conducted by all investigators (researchers) in order to better understand action mechanisms of psychological interventions for children with chronic diseases (registered in PROSPERO: CRD42021233505). Phase I.b: * Individual semi-structured qualitative interviews will be conducted by one or two investigators to explore the following questions: Which are emotional and cognitive difficulties and resources in children with CPC? Which are the emotional and cognitive needs of children with CPC? How are these/can these be addressed? * One or several focus groups will be created. They will be composed of different experts in the domain of CPCs (health care professionals, families, researchers, etc.). Per group, one or several meetings will be organized, depending on participants' availabilities. The meetings will be conducted by one or two investigators who will use semi-structured interview techniques to explore the following questions: Which are emotional and cognitive difficulties and resources in children with CPC? Which are the emotional and cognitive needs of children with CPC? How are these/can these be addressed? PART II will consist of a feasibility and an effectiveness study of the intervention. For both studies, the selected intervention will be implemented, based on scientific, rigorous methods, and be evaluated with different quantitative and qualitative measures. PART II will rely on PART I. Thus, it will be described in another registration after completion of PART I.