Contextual Influences on Self-Assessed TPACK: A Comparison of Physics Undergraduates and In-Service Science Teachers

The Technological Pedagogical Content Knowledge (TPACK) framework is widely used to conceptualize teacher knowledge as an interplay of content, pedagogy, and technology. Following recent research interests in examining TPACK as contextually situated knowledge, this study investigates how pre-service physics teachers (undergraduate students in a physics department) and in-service science teachers perceive the domains of TPACK and explores what these differences imply for university-based teacher education. A total of 48 pre-service physics undergraduates and 27 in-service teachers completed an adapted 21-item self-assessment questionnaire, which combined validated items with context-specific modifications. Data analysis included internal consistency reliability tests, independent samples t-tests, and correlation analysis. Results revealed that pre-service teachers reported higher self-assessed competencies, especially in integrative domains, although their knowledge structures appeared less coherent. In contrast, in-service teachers exhibited more coherent and integrated knowledge frameworks, possibly reflecting their accumulated professional experience, despite reporting lower self-confidence. These findings confirm the contextual and situated nature of TPACK, highlighting the divergence between perceived competence and structural coherence. The study contributes by proposing that university science education programs should not only promote theoretical understanding of TPACK but also deliberately embed technology-rich, practice-oriented experiences.