Abstract
In the United States, the Comprehensive School Physical Activity Program (CSPAP) is a whole-of-school framework to ensure youth meet physical activity guidelines. Physical education teachers (PETs) are poised to be CSPAP leaders, but implementation is low. PETs' involvement with CSPAPs may be better understood through the lens of their role breadth self-efficacy, which captures how professionals feel about their ability to undertake expanded workplace roles. Furthermore, investigating PETs' CSPAP-related role breadth self-efficacy from the perspective of occupational socialization theory could help to identify critical intervention points in PETs' career development to support CSPAP implementation. The purpose of this study, therefore, was to explore PETs' perceptions of how the phases of occupational socialization theory influence their role breadth self-efficacy to be involved with CSPAPs. Stratified random sampling and convenience sampling were used to recruit 25 PETs (n = 16 female) in the United States. Data were collected using individual, semi-structured interviews and analyzed using constant comparison. The findings are represented in three overarching themes, each accompanied by corresponding subthemes: (a) modeling and encouragement from socializing agents, (b) learn by doing: mastery experiences, and (c) agent of change: "I believe in this." The PETs' childhood physical activity experiences, physical activity leadership development within teacher education, mentorship from experienced educators who exemplify effective strategies, and the capacity to foster social capital within the workplace are key factors impacting PETs' CSPAP-related role breadth self-efficacy. Further investigation into mentorship programs for novice PETs to lead CSPAPs and best practices for CSPAP training in teacher education is recommended.