1. Introduction
Curriculum reforms are a key strategy for adapting education systems to social and technological developments. Such reforms, including the introduction of the ‘media and information literacy’ (MIL)
1 module curriculum in Switzerland, entail specific requirements on teachers. The new module curriculum mandates that educators prepare their students for the digital age and the modern workplace (
Educa.ch, 2020). This curriculum reform introduces new expectations regarding both learning content and teaching methods related to digital literacy (
Grgić, 2023c).
Teachers are widely seen as agents of change (
Fitria & Suminah, 2020), and their professional competence is considered a decisive factor in the success or failure of curriculum implementation (
Eickelmann & Vennemann, 2017;
Ertmer, 2005;
Grgić, 2023b). Beyond the provision of suitable technical infrastructure and equitable access for students, the effective integration of digital education into the classroom strongly depends on teachers’ competencies (
Trucano, 2016). As central actors in delivering the competencies outlined in the curriculum (
Oelkers, 2010), they are expected to possess sufficient digital skills—a requirement also emphasized by Swiss authorities to ensure the successful embedding of the MIL module in educational practice (
Arbeitsgruppe ICT und Medien, 2015;
Educa, 2021).
While digital competence has become a central pillar in educational reforms internationally, empirical studies suggest that the implementation processes and their effects on teacher competence vary greatly. In Norway, digital competence was institutionalized as a basic skill across all subjects, requiring a major shift in teacher education and professional practice (
Krumsvik, 2014). Similarly, European in-service training systems show considerable variation in how effectively digital competencies are integrated, often lacking targeted support that would ensure sustainable competence development (
Hrytsenchuk et al., 2018).
This study builds on these findings by offering a differentiated analysis of how teachers’ MIL competencies evolve over time based on two independent samples surveyed during and after the implementation phase. Additionally, it seeks to provide insights into the evolution of teachers’ competencies during a school reform—the introduction of the MIL module curriculum.
2. Theoretical Framework
Numerous school reforms are currently underway worldwide, with the integration of information and communication technologies (ICTs) into curricula playing a central role. These reforms aim to better prepare students for the digital society and workforce (
Gouëdard et al., 2020). Switzerland is following this international trend by introducing the ‘Media and ICT’ (MIL) module curriculum to embed digital skills as an integral part of education. Teachers are not only mediators of knowledge but also designers of teaching–learning processes supported by digital technologies (
Arbeitsgruppe ICT und Medien, 2015;
Educa.ch, 2020).
The introduction of such curricula poses significant challenges for education systems. From a theoretical standpoint, the implementation of digital education reforms must be understood through the lens of organizational and professional change.
Fullan (
2007) argues that lasting educational change requires alignment between policy, school leadership, and teacher development, with continuous professional learning at its core. Similarly,
Korthagen (
2017) highlights that sustainable change in teacher practice arises from aligning external reform goals with teachers’ intrinsic motivation and reflective processes.
School development theory further elaborates this perspective.
Rolff (
2023) emphasizes the interdependence of instructional, organizational, and personal development within schools. He posits that effective curriculum reform necessitates a clear focus on teacher professional development, which serves as a critical lever for sustainable instructional and organizational transformation. This triangulated approach is particularly relevant for digital reforms, where evolving teacher roles and competencies are central to successful implementation.
2.1. The Module Curriculum for MIL
The MIL module curriculum for compulsory education is divided into three central areas: media, computer science, and application skills (
Arbeitsgruppe ICT und Medien, 2015).
In the field of media, students acquire the ability to navigate actively, critically, and creatively within a digital society. They learn to use media appropriately and to engage responsibly with themselves and others (
Arbeitsgruppe ICT und Medien, 2015, p. 10).
The field of computer science teaches basic concepts related to the automated processing, storage and transmission of information (
Kanton Wallis, 2018).
In the area of application skills, students learn to use ICTs effectively and efficiently in various academic and extracurricular contexts, such as designing digital presentations. These three areas are not strictly separated, as many competencies overlap across these domains (
Arbeitsgruppe ICT und Medien, 2015, p. 10).
The module curriculum is taught throughout the entire compulsory school period. In the first four years of schooling, this instruction occurs across all subjects. In the subsequent years, it is the responsibility of the individual cantons to determine the time and content framework for implementation (
Arbeitsgruppe ICT und Medien, 2015, p. 10).
2.2. The MIL Competency Model for Assessing Teacher Competencies
In response to the growing demands of digital transformation in education, various theoretical models have been developed to conceptualize the professional competencies required of teachers. Internationally, the European Commission’s DigCompEdu framework defines 22 essential digital teaching competencies across six domains: Professional Engagement, Digital Resources, Teaching and Learning, Assessment, Learner Empowerment, and Facilitating Learners’ Digital Competence (
Caena & Redecker, 2019). This framework supports the development of national models by offering a flexible yet comprehensive structure.
Complementary to DigCompEdu is the TPACK model (Technological Pedagogical and Content Knowledge), which breaks down the knowledge required for effective digital teaching into three core areas: Technological Knowledge (TK), Pedagogical Knowledge (PK), Content Knowledge (CK), and their intersections (PCK, TPK, TCK, and TPACK) (
Mishra & Koehler, 2006). This model provides a conceptual basis for understanding how teachers integrate digital tools into subject-specific instruction.
Translating these frameworks into national contexts requires contextualization. In Switzerland, the MIL competency model was developed as part of the introduction of the MIL module in the national curriculum (
Grgić, 2023b,
2023c). It draws on international models while addressing specific educational goals and curricular structures in the Swiss context.
The MIL competency model distinguishes four facets of competence: ICT knowledge and application (technical skills for using digital tools), media education knowledge and application (critical reflection on media use and its didactic integration), subject didactics MIL (subject-specific didactic approaches to teaching MIL content), and interdisciplinary pedagogical and didactic knowledge. For each facet, specific competencies are defined, accompanied by illustrative examples. For instance, the competency of ‘knowing the media environment of the pupils and integrating it into the classroom’ falls under the facet of ‘subject didactics MIL’. The four facets of competence, along with the individual competencies within them, contribute to the calculation of an overall score, which represents the level of MIL competency.
Overall, the MIL competency model demonstrates conceptual alignment with both DigCompEdu and TPACK. This compatibility reinforces its relevance not only within the Swiss educational landscape but also in broader international and comparative contexts.
Empirical results indicate that MIL competence, or the overall score at the beginning of the reform implementation, is at a medium–high level (
Grgić, 2023a). Furthermore, the results show that teachers excel in the areas of ‘media education knowledge and application’ and ‘interdisciplinary, pedagogical and didactic knowledge’, while ‘subject didactics MIL’ significantly lags behind the overall score (
Grgić, 2023a). However, there remains a lack of systematic knowledge regarding how these competencies have developed throughout the reform.
2.3. Empirical Findings on Competence Development During Reform Processes
Empirical studies demonstrate that the successful implementation of new curricula is highly dependent on teachers’ professional competence (
Deng, 2022;
Taole, 2015). Teachers who possess a solid understanding of the new curriculum content are more effective in its implementation (
Shulman, 1986). Conversely, inadequate training and limited opportunities for continuing education lead to uncertainties and implementation challenges (
Chan, 2010).
However, existing studies yield contradictory results regarding the impact of reform processes on teachers’ perceived and actual competencies. On the one hand, some studies indicate that reform efforts can promote competence development, particularly when accompanied by targeted continuing education (
Bennett et al., 1992;
Hausman & Ruzek, 1995). On the other hand, other findings suggest that new and unfamiliar demands introduced by reforms can create uncertainty and doubt, resulting in a subjective perception of declining competencies—especially when professional support and training are lacking (
Bennett et al., 1992;
Roslin et al., 2023).
A longitudinal study conducted by
Bennett et al. (
1992) investigated how primary school teachers perceived their competence in light of the newly introduced National Curriculum in England and Wales. Results indicated improvement in perceived competence in the natural sciences but a decline in English and mathematics. The increased confidence in science teaching was linked to clearer curricular guidelines, greater emphasis on the subject, and more instructional time, which likely enhanced teachers’ sense of efficacy. In contrast, the deterioration in English and mathematics may have stemmed from teachers becoming more accurate in assessing their abilities as they gained familiarity with the strict achievement benchmarks of the new curriculum (
Bennett et al., 1992).
Similarly,
Hausman and Ruzek (
1995) examined the integration of health education in U.S. elementary schools and found that teachers who engaged in professional development improved their willingness and capacity to teach the subject. Conversely, teachers who did not participate in such programs showed a decline in engagement over time—likely due to a lack of reinforcement and opportunities to build competence.
Roslin et al. (
2023) reported comparable findings in the context of preschool education reforms. Their study emphasized that many teachers were unprepared for the new curriculum due to insufficient knowledge and training, which severely limited successful implementation.
In summary, while some reform contexts offer opportunities for professional growth through structured learning, others risk undermining teachers’ confidence if adequate support is not provided. The extent to which teachers’ MIL competencies evolve over the course of a curriculum reform remains under-researched. This study seeks to address this gap by comparing the MIL competencies of two different samples of teachers during and after the implementation of the MIL module curriculum.
2.4. The Present Study: Research Questions and Hypotheses
Although prior research has discussed general shifts in teacher competence during curriculum reforms, most studies have not disaggregated these shifts by specific competence dimensions. Furthermore, digital competence has become a core pillar in modern curriculum reform, yet systematic research on its differentiated development over time remains scarce. In Norway, for instance, digital competence was introduced as a foundational skill in all subjects, fundamentally shifting expectations for teacher education and in-service training (
Krumsvik, 2014). European studies further reveal that digital competence training for teachers is often uneven and insufficient to ensure long-term effectiveness (
Hrytsenchuk et al., 2018).
This study addresses these gaps by examining how four distinct MIL competence facets differ between two reform phases, using two temporally distinct samples. In doing so, it contributes empirical evidence on the differentiated nature of teacher competence development in the digital context. Therefore, the following research question is formulated: How do the MIL competencies of teachers surveyed during the implementation of the MIL module curriculum differ from those surveyed after the completion of the reform?
Due to the contradictory empirical findings, an undirected, exploratory hypothesis is formulated for the present study. It is anticipated that teachers’ MIL competence may improve, stagnate, or even decline. Additionally, it is possible that the various facets of competence will develop differently throughout the course of the reform.
5. Discussion
This study assessed the digital competencies of teachers during and after the implementation of the MIL module curriculum. Two different samples of teachers were surveyed regarding their digital skills at two distinct times in the school reform process. One sample was interviewed during the implementation of the MIL module curriculum, while the other was interviewed afterwards.
The results indicate that the development of competence varied across the different facets of MIL competence. While no significant differences were observed in the areas of ICT knowledge and application or media education knowledge and application between the two samples, significant differences were identified in the facets of subject didactics MIL and interdisciplinary pedagogical and didactic knowledge.
These findings align with previous empirical studies suggesting that reform processes can have varying effects on teachers’ competence development (
Bennett et al., 1992;
Hausman & Ruzek, 1995). In particular, the findings of
Bennett et al. (
1992) indicate that teachers perceive improvements in their competencies in certain areas following a reform, while they may experience uncertainties in others. This may help explain the present results: the higher perceived competence of teachers in subject-specific didactic MIL during the implementation phase (Sample 1) may stem from the reform necessitating a greater examination of subject-specific didactic teaching methods. However, once the reform was completed (Sample 2), new challenges and uncertainties may have emerged, leading to a decline in the self-assessment of this competence. This observation corresponds with
Bennett et al.’s (
1992) evaluation that teachers assess their actual abilities more realistically after a reform.
Conversely, the facet of interdisciplinary pedagogical and didactic knowledge shows a higher level of competence in the second sample. This suggests that teachers likely enhanced their skills in this area after the reform, particularly through participation in continuing education measures. This finding aligns with the conclusions of
Hausman and Ruzek (
1995), which suggest that teachers can develop their skills in specific areas through prolonged exposure to reform and targeted training.
The results of this study also corroborate the findings of
Roslin et al. (
2023), which indicate that teachers are often inadequately prepared to meet the new demands of curriculum reforms. If insufficient training opportunities were available during the implementation phase, this could explain the decline in perceived competence in certain areas, such as subject didactics MIL. It is equally important to consider subject-specific factors in the development of such competencies. Not all school subjects may lend themselves equally well to digital integration, and the nature and extent of MIL-relevant content and methods can vary significantly across disciplines. This may help explain why teachers from different subject backgrounds experience varying levels of confidence and progress in their MIL-related competencies. Future implementation strategies and professional development programs should therefore take these disciplinary differences into account and provide differentiated support that reflects the diverse demands of each subject area.
Overall, the findings underscore that curriculum reforms do not necessarily lead to a uniform increase in competence. Instead, differentiated effects are evident, depending on the specific facet of competence. While some areas were strengthened during the reform process, others experienced uncertainties or even a decline in perceived competence. This highlights the need for targeted continuing education programs before, during, and after the implementation of new curricula to adequately prepare teachers for evolving requirements.
5.1. Study Limitations and Implications for Future Research
A significant methodological limitation of this study is that the two samples were collected at different times and involved different participants. Therefore, causal conclusions regarding the development of individual competence trajectories cannot be drawn, and comparability between the samples is limited. Additionally, survey 1 was conducted within a research project, while survey 2 stemmed from a consultation, which may also have influenced the way in which teachers decided to reply to the questions, which were all self-reported.
Moreover, it cannot be ruled out that the two samples differ systematically due to unmeasured cohort effects. For instance, teachers who responded during the implementation phase may have experienced higher levels of external pressure or motivation compared to those surveyed after the reform. Differences in school environments, professional development exposure, or regional educational policies may have also contributed to the variations in perceived competencies. These contextual and temporal differences between the two cohorts represent a key limitation that may affect the interpretation of the findings.
The found effects therefore have to be interpreted with caution not only because they were small but also due to these methodological limitations. We, however, still believe that teacher competencies should be considered during school reform processes and would like to contribute to this discussion. The decision to formulate an exploratory, undirected hypothesis was methodologically appropriate, given the previous contradictory research results, which suggested that both improvements and stagnation or declines in competencies could be expected (e.g.,
Bennett et al., 1992;
Hausman & Ruzek, 1995;
Roslin et al., 2023).
The results show that digital competencies among teachers do not evolve uniformly across reform phases. This differentiated development has concrete implications for future professional development strategies. Future research should, therefore, employ longitudinal study designs to examine the development of teachers’ MIL competencies across the reform timeline. Additionally, advanced analytical approaches could be used to identify distinct competence profiles and developmental patterns.
Qualitative methods, such as participant observation or interview-based content analysis (
Mayring, 2007), could yield deeper insights into teachers’ lived experiences during reform implementation. Moreover, future research should more explicitly examine influencing factors such as continuing education offerings and school conditions (e.g., ICT infrastructure), as these might significantly shape competence development.
In particular, future studies should investigate how specific professional development approaches affect distinct aspects of digital competence. For instance, training formats tailored to address domain-specific gaps—such as the integration of digital tools in subject didactics—could be especially effective. Additionally, longitudinal and qualitative designs would be valuable for capturing individual learning trajectories and institutional conditions.
5.2. Conclusions and Practical Implications
This study provides important empirical, theoretical, and practical insights into the development of teacher competencies during and after the implementation of curriculum reform in the fields of MIL. The results indicate that reform processes do not necessarily lead to a uniform increase in competence; rather, they can produce differentiated effects. While teachers perceive their interdisciplinary pedagogical and didactic knowledge as strengthened after the reform, they believe their subject-specific didactic MIL competencies experienced a decline. Although the observed effect sizes were small, this should not be interpreted as a lack of significance. Rather, it may reflect the difficulty of fostering change without explicitly targeting it—a finding that underscores the need for a more systematic and focused implementation of training programs. In large-scale educational settings, even modest improvements can have substantial long-term impacts, especially when effects accumulate across systems or over time.
From a policy and practice standpoint, these results suggest that small shifts in teacher competencies may indicate deeper structural challenges. One such challenge is the need for more differentiated, subject-specific professional development—particularly in light of curriculum reforms that often affect thousands of educators simultaneously. Acknowledging the complex and uneven nature of competence development is essential for designing professional development that is both scalable and sensitive to diverse teaching contexts.
Research further supports the idea that small effect sizes can translate into meaningful change when interventions are applied systemically and sustained over time (
Vanwynsberghe et al., 2017).
While the study was conducted within the specific context of the Swiss education system, the findings may hold relevance for other countries undergoing similar curriculum reforms in MIL. Differentiated patterns in perceived teacher competencies and the need for targeted professional development are not unique to Switzerland; they have also been identified in international research (
Frankling et al., 2017;
Kahmann et al., 2022). However, structural characteristics such as Switzerland’s decentralized education system, high degree of school autonomy, and well-established continuing education structures may limit the direct transferability of these results. Therefore, any application to other national or institutional contexts should be approached with careful consideration of local conditions.
Nonetheless, the overarching principle remains applicable: To foster effective competence development, professional learning opportunities must be strategically designed and tailored to individual needs. Modular, needs-based formats—aligned with the MIL competency model (
Grgić, 2023b,
2023c)—can provide targeted and sustainable support. For example, teachers with specific needs in subject-related didactics should receive training that focuses on integrating digital methods into their instructional design.
Moreover, professional development should be embedded in systemic school development processes. As
Rolff (
2023) highlights, personal development becomes effective only when it is integrated into the broader organizational context. This requires school leadership to develop long-term development plans that align with curricular goals and institutional needs. Such an integrated approach resonates with
Fullan’s (
2007) perspective, which argues that meaningful teacher learning must be grounded in daily school practice rather than detached training settings. Embedding professional development within everyday routines—through professional learning communities, peer collaboration, and structured reflection—not only enhances relevance but also promotes sustainability. However, this requires schools to provide institutional scaffolding, including protected time and space for teachers to engage in continuous, practice-based development and to iteratively refine their digital competencies. International examples provide valuable guidance. Estonia, for instance, has implemented a structured professional development framework directly linked to national digital competence standards (
Mukan et al., 2019).
The results underscore the importance of existing theories on the implementation of educational reforms, particularly regarding the role of teacher competencies and professional development during the reform process. The study confirms that reforms can have both beneficial and inhibiting effects on teachers’ self-perception, depending on the quality of support systems and continuing education.
In summary, the study demonstrates that curriculum reforms necessitate targeted and long-term support for teachers to strengthen their skills across all relevant areas over time. This requires close collaboration among schools, education policymakers and teacher training institutions to ensure the effectiveness of reform measures.