Sport is deemed by many researchers and practitioners as a favourable context to foster positive youth development (PYD), including the acquisition of life skills (Petitpas et al., 2005). However, researchers have cautioned for vigilance before assuming with assurance that sport leads to positive developmental outcomes (Coakley, 2011). Consequently, it is important to understand how sport leaders can facilitate the development and transfer of life skills. In the context of high school sport in Canada, teacher-coaches are considered essential adults in the delivery of school sport programs. Using Pierce et al.’s (2017) life skills transfer model, the present thesis explored the contextual and psychological factors influencing the development and transfer of life skills. An intervention was designed, using action research principles, with two high school teacher-coaches. Data were collected via teacher-coach pre- and post-intervention interviews, as well as student-athlete post-intervention interviews (i.e., five student-athletes per teacher-coach). Further, data were gathered through observation, and audio recording of each life skill implementation, as well as a researcher reflective journal. The results indicated that teacher-coaches played an important role in influencing contextual and psychological factors, in both the learning and the transfer context, which shaped student-athletes’ life skills development and transfer. The study has practical implications for coach education programs, suggesting the benefits of on the ground support to provide coaches and teacher-coaches with the necessary tools to promote PYD.

Une commotion cérébrale liée au sport (CCS) est une lésion cérébrale traumatique dont les athlètes du secondaire sont susceptibles de présenter des symptômes graves en raison de la maturation cognitive pendant l'adolescence. En utilisant le modèle « Capability Opportunity Motivation-Behaviour » (Michie et al., 2011), nous cherchions à comprendre les expériences des étudiants-athlètes d’écoles secondaires et de leurs entraîneurs par rapport aux comportements liés aux CCS. Nous avons mené des entrevues semi-structurées (M = 72 min) avec des athlètes (n = 10), des entraîneurs (n = 4) et des enseignants-entraîneurs (n = 2) d'une école secondaire impliqués dans le hockey sur glace, le basket-ball, le volley-ball et le rugby. Nous avons effectué une analyse dirigée de contenu en utilisant le modèle COM-B. Les athlètes et les entraîneurs ont décrit des expériences ayant eu un impact sur leur capacité à divulguer les symptômes (athlètes) et à gérer correctement la CCS (athlètes et entraîneurs). De plus, les participants ont décrit des facteurs qui ont influencé les opportunités à améliorer les connaissances en matière de CCS (athlètes et entraîneurs), de les déclarer (athlètes), de les gérer correctement (athlètes) et de les identifier (enseignants-entraîneurs). Enfin, les participants ont indiqué leurs motivations pour les décisions concernant le signalement des CCS (athlètes), le retrait du jeu (entraîneurs) et la bonne gestion des CCS (athlètes et entraîneurs). Les résultats de cette étude pourraient aider les chercheurs à intégrer la théorie du changement de comportement pour créer des interventions d'éducation sur les CCS. / Sport-related concussion (SRC) is a traumatic brain injury that has regrettably become prevalent in many contact or collision sports. High school athletes are more vulnerable to experiencing more severe symptomatology compared to adults due to the cognitive maturation that occurs throughout adolescence. Using the Capability Opportunity Motivation-Behaviour (COM-B) model, the innermost ring of the Behaviour Change Wheel (Michie et al., 2011), we sought to understand the experiences of high school athletes and coaches with concussion-related behaviours in their sports. We conducted qualitative semi-structured interviews (M = 72 min) with high school athletes (n = 10), coaches (n= 4), and teacher-coaches (n= 2) from a rural high school in New Brunswick, who were involved in ice hockey, basketball, volleyball, and rugby. We performed a directed content analysis of the interview transcripts using the COM-B model as pre-determined codes. Athletes and coaches described experiences that we felt impacted their capabilities for symptom disclosure (athletes), and for both athletes and coaches to properly manage SRC. Similarly, we interpreted that opportunities to improve SRC knowledge (athletes and coaches), to report SRC (athletes), to properly manage SRC (athletes) and to identify SRC (teacher-coach) were impacted by factors described in participants’ experiences. Lastly, participants described the motivational factors that impacted their SRC reporting (athletes), removal from play (coaches) and proper SRC management (athletes and coaches) behaviours. The findings from this study will ideally assist future researchers in designing more effective behavioural interventions to improve concussion safety among high school sport participants.