Language and cultural barriers in international guest lecture: a case study of Polish lecturer in Indonesian graduate programs

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Introduction

Internationalization in higher education has rapidly expanded in the past decades, prompting universities worldwide to incorporate guest lectures delivered by foreign scholars as a means to enrich student learning experiences and foster global competence [1]. This growing trend allows students to engage with diverse pedagogical approaches and cultural perspectives. However, the effectiveness of these lectures can be influenced by language and communication barriers that challenge mutual understanding [2].

English functions as the predominant medium for international academic exchanges, yet variations in pronunciation, accent, and fluency often impact comprehension for non-native speakers [3]. Research indicates that students frequently face difficulties when lecturers speak with strong accents or at a speed that is not adjusted for their listening capacity, making language accommodation an essential factor in cross-cultural teaching [4]. Strategies such as modulating speech tempo and clarifying terminology can support learning but are inconsistently reported in practice [5].

Beyond language, cultural differences in teaching styles significantly influence student receptivity and engagement. Educational cultures vary widely in norms regarding communication directness, power distance, and interaction preferences [6]. In Indonesian contexts, indirect communication and respect for hierarchy are valued, which may contrast with more straightforward Western styles familiar to many guest lecturers [7]. Sensitivity to host culture is therefore pivotal for fostering an inclusive environment that meets learner expectations [8].

The rise of virtual learning environments has introduced new dimensions to international guest lecturing. Digital platforms like Zoom and Teams facilitate wide accessibility but also encounter limitations including connectivity issues and reduced non-verbal cues, affecting interaction quality [9]. Employing engagement techniques such as real-time polls and breakout discussions can mitigate some drawbacks, yet the impact of technological disruptions remains a concern [10].

Indonesia, with its strategic focus on improving higher education quality, increasingly leverages international academic collaborations, including guest lectures, to build graduate capabilities [11]. Despite institutional measures, empirical data on how Indonesian postgraduate students perceive these interventions, especially from European lecturers, are scarce. Understanding student experiences is critical for identifying best practices and areas for enhancement in this evolving context [12].

This study concentrates on Indonesian postgraduate students’ perceptions of a Polish lecturer’s online guest lecture, specifically examining language clarity, cultural compatibility, and technological engagement. The objective is to assess factors that aid or hinder effective knowledge transfer and cultural learning, thereby providing actionable insights to educators and administrators committed to internationalization [13].

Insights from this research can inform the design of future international guest lectures, encouraging strategies that prioritize linguistic accommodation, cultural respect, and technological readiness. Such improvements align with broader efforts to globalize curricula while maintaining educational quality and student satisfaction across diverse settings [14].

Ultimately, this study fills a research gap by offering empirical evidence from an understudied context, contributing to theoretical and practical discourses on cross-cultural pedagogy and online international education. These findings aim to support the sustainable development of global academic partnerships in the digital era [15].

Literature review

Language and communication barriers during international guest lectures. Language proficiency and communication clarity are still critical to the success of international guest lectures, especially when delivered online across language boundaries. Previous research has shown that language hurdles are typically manifested through accent variations, speaking speed, and the complexity of lecturers’ terminology. For example, university students frequently report difficulties understanding accented English or fast speech, which can impair learning. Notably, research on visiting lecturer programs with non-native English speakers emphasizes the difficulty of vocabulary gaps and speaking pace, suggesting lecture summaries in students’ first languages to alleviate understanding challenges and assist learning processes [16]. Similarly, online learning environments might exacerbate these barriers due to a lack of face-to-face interaction cues, making it more difficult for students to decipher meaning and lecturers to adapt delivery in real time [17]. Despite this, many students prefer it when lecturers deliberately regulate their speech and accommodate non-native speakers by slowing down and clarifying language, hence improving accessibility and involvement. Encourage active participation, such as question-asking, to overcome language fear and improve interaction despite linguistic barriers [18].

Language limitations in international guest lectures provide major challenges beyond word acquisition. According to research, speaking speed and accent are two of the most important characteristics influencing students’ comprehension, particularly among non-native English speakers. A research conducted at an Indonesian university with visiting lecturers discovered that the speed at which lecturers spoke was frequently too rapid for students to follow, impairing their capacity to absorb complicated topics in real time [16]. Additionally, variances in lecturers’ accents might generate cognitive overload in listeners, resulting in lower comprehension and irritation. For example, pronunciation challenges with phonemes not present in the students’ native language make it difficult to differentiate words during lectures [19]. These obstacles may lead students to rely extensively on lecture summaries or additional peer support to ensure material comprehension. As a result, it is recommended that guest lecturers deliberately temper their speeches and, when possible, give extra materials or summaries to support learning [16].

Furthermore, linguistic disparities influence not just comprehension, but also student participation and engagement in international guest lectures. Communication obstacles can make students hesitant to ask questions or contribute to discussions, limiting interactive learning opportunities [20]. In multilingual educational settings, students’ lack of confidence in their English ability frequently prevents real-time interactions with lecturers, which are necessary for clarification and deeper understanding [21]. Furthermore, the employment of mixed languages by some lecturers or in the classroom might be confusing for students, compounding academic communication challenges. To overcome this, fostering relaxing and supportive workplaces, training lecturers in clear communication strategies, and incorporating interactive approaches such as Q&A sessions tailored to different competence levels are critical [20, 21]. These approaches improve comprehension and promote inclusive involvement, allowing for more effective international educational interactions.

Cultural differences in teaching styles and their impact on learning. Cultural factors have a considerable impact on teaching and learning styles, impacting expectations and communication patterns in cross-cultural educational contexts. According to research, teaching styles vary between cultures, with some favoring didactic, lecture-oriented approaches and others emphasizing participatory, student-centered learning, for example, while East Asian classrooms have less student verbal participation than Western classrooms, they can nonetheless achieve good academic performance using alternate learning methods [22]. Understanding these differences is crucial when international lecturers interact with varied student audiences; cultural communication norms mismatches can lead to misconceptions or poor comprehension [23]. According to studies conducted on Indonesian-EFL students, guest lecturers who display cultural awareness and respect for local traditions increase learning motivation and establish a supportive environment [18]. Effective international lecturers frequently modify their teaching techniques by combining direct instruction and interactive features, which aligns with both their teaching culture and students’ learning objectives [24].

Cultural differences in teaching approaches are firmly established in a region’s historical, social, and educational traditions, and they have a considerable impact on how students perceive and participate in learning. In Southeast Asia, especially Indonesia, teaching approaches are more authoritative and teacher-centered, with an emphasis on hierarchy, group cohesion, and discipline.This differs from Western teaching practices, which frequently emphasize individual student autonomy, critical thinking, and participatory, discussion-based approaches [25].

The Southeast Asian tendency for authoritative learning can sometimes limit students’ desire to actively question or criticize concepts during lectures, creating difficulties when international lecturers use more interactive or open-ended teaching approaches. Understanding these cultural norms is critical for guest lecturers who want to establish an inclusive learning environment that respects students’ comfort levels while encouraging participation [25]. Adapting teaching approaches to balance directed supervision and opportunities for student participation can help with cultural integration and improve learning outcomes.

Furthermore, cultural variations have an impact on students’ motivation and academic achievement, as well as instructional techniques. Studies have revealed that when teaching methods are tailored to students’ cultural learning preferences, motivation and classroom participation enhance. In cultures that value collectivism and respect for authority, such as Indonesia, including group work and collaborative learning matches well with students’ expectations and promotes participation [24]. Foreign lecturers who ignore cultural nuances, on the other hand, may unintentionally cause discomfort or confusion, reducing students’ learning efficacy. Furthermore, the global movement toward culturally responsive teaching emphasizes the necessity of respecting students’ cultural identities and incorporating local circumstances into pedagogy to bridge cultural gaps [26]. Such approaches not only promote deeper comprehension, but also help to create intercultural competency, which is an essential ability in today’s worldwide educational environment [24].

Technology and engagement issues in virtual international lectures. Online guest lectures rely greatly on the reliability of technology and the creation of interesting learning experiences. The digital revolution in education provides accessibility and a variety of instructional tools, but it also introduces obstacles such as internet reliability, digital literacy gaps, and fewer interpersonal cues [27]. Technical concerns, particularly internet slowness, sometimes interfere with students’ concentration and engagement in live sessions. According to study, around one-third of online learners perceive these disruptions as impediments to successful learning [28]. However, well-structured digital platforms allowing for participation through polls, breakout discussions, and multimedia integration are helpful in keeping students engaged and motivated. The accessibility of learning resources is critical; materials that are clear, organized, and easy to explore in an online format have a favorable impact on learning outcomes and user satisfaction. Continuous professional development for lecturers is also required to understand digital pedagogies and optimize virtual learning experiences [29].

The rapid progress of digital technologies has altered virtual international lectures, yet successfully integrating these tools remains a difficulty. Recent studies highlight the urgent need for AI-powered educational technologies, such as intelligent tutoring systems and adaptive learning platforms, to tailor learning experiences and increase engagement in virtual environments [30]. However, the successful implementation of such technologies is strongly dependent on consistent internet connectivity, user digital competence, and platform accessibility, all of which vary greatly among global learners [31]. Furthermore, the expanding use of AI technologies raises issues about academic integrity and professional oversight, as some AI-driven solutions can yield inaccurate or biased results if not properly controlled [30]. To address these problems, educators must be trained in both technology use and digital pedagogy, and institutions must invest in strong infrastructure and support systems. Such efforts are critical for creating dynamic, equitable, and effective virtual learning environments in international educational settings.

Benefits and impact of international guest lectures. Beyond the hurdles, overseas guest lecturers provide major educational benefits such as exposure to other ideas, improved language abilities, and increased cultural awareness. Students claim increased communication and problem-solving skills as a result of discussions with international experts who present real-world case studies and new perspectives [18]. These sessions frequently encourage students to become more interested in the guest lecturer’s nation and culture, hence promoting overall intercultural competency development [32]. Furthermore, guest lectures provide networking opportunities and motivation by connecting theoretical knowledge with practical experiences from many global contexts [33]. Overall, student feedback consistently highlights favorable experiences when language accommodation, cultural sensitivity, and dependable technology are prioritized [16, 18, 27].

International guest lectures provide significant benefits that go beyond basic knowledge transmission, greatly enhancing students’ academic and professional development. These lectures give students access to professional expertise and real-world industry insights, enriching their understanding by connecting academic concepts to practical applications. Furthermore, guest lectures improve students’ communication and problem-solving abilities by exposing them to varied viewpoints and promoting active involvement through Q&A and dialogue with global experts [34]. Such encounters encourage students to widen their academic goals and increase motivation by highlighting job opportunities related to their fields of study. Furthermore, these lectures provide excellent networking possibilities by linking students with professionals who might help them in their future careers. Importantly, international guest lectures promote intercultural skills, allowing students to recognize global variety and prepare for careers in increasingly multicultural settings [35]. Overall, these contributions make international guest lectures essential components of higher education curricula, resulting in improved learning outcomes and professional readiness.

Materials and methods

This study utilized a descriptive mixed-method approach, mainly quantitative but supplemented with qualitative data, to investigate Indonesian postgraduate students’ perceptions of an international guest lecture presented online by a Polish professor. The study focused on three primary areas: language and communication hurdles, cultural differences in teaching styles, and technological and engagement challenges. Over 150 postgraduate students from diverse disciplines participated, including Master of Pedagogy, Law, and Management programs at Universitas Pancasakti Tegal, Central Java, Indonesia.

A designed questionnaire was circulated electronically immediately following the lecture to capture fresh student impressions in an anonymous and voluntary manner. The questionnaire comprised 14 statements in four sections: (1) language and communication hurdles, including items on the lecturer’s English pronunciation clarity, difficulty understanding related to accent differences, adjusting speaking speed to accommodate non-native speakers, and comfort in asking questions despite language disparities. (2) cultural differences in teaching style, assessing alignment of teaching style with student expectations, communication style differences (e.g., direct vs. indirect) affecting comprehension, and the lecturer’s respect for Indonesian cultural norms; (3) technology and engagement challenges, covering online platform effectiveness, use of engaging methods such as polls and discussions, influence of technical issues such as internet lag, and lecture materials’ accessibility. Responses were scored on a 5-point Likert scale ranging from strongly disagree (1) to strongly agree (5), with open-ended fields for students to offer qualitative feedback.

The guest lecture was presented synchronously via Zoom, a reliable web conferencing software with interactive capabilities that allow for real-time polling and breakout room conversations. The lecturer used language accommodation tactics such as modifying speech tempo and articulating clearly to promote accessibility for non-native English-speaking students, and lecture resources such as slides and digital handouts were made easily accessible during and after the session. The quantitative results from the survey were examined using descriptive statistics such as frequencies, percentages, and mean scores to reflect student attitudes across the key areas. Thematic analysis was used on qualitative remarks to find recurring themes and gain deeper insights into student experiences. The use of both quantitative and qualitative data improved the study’s comprehensiveness and validity while also providing practical implications for improving international guest lectures in virtual learning environments [18, 32, 36].

Research results

To visualize all four evaluation aspects in one pie chart, the data should be categorized by its nature: positive feedback versus negative feedback.

The comprehensive single pie chart combines all feedback into two main sentiment categories (fig. 1). The Positive portion represents the combined favorable aspects, averaging an 80 % positive rating based on 361 student responses. In contrast, the Negative portion corresponds to the 25 % of students who reported difficulties due to Accent, totaling 38 responses. This visual representation shows that positive feedback makes up the majority, specifically 90.5 % of the total responses (361 out of 399), while negative feedback accounts for the remaining 9.5 %, offering a clear overview of the overall positive sentiment.

 

Fig. 1. Language & communication: all language & communication aspects

 

The majority of students thought the lecturer’s pronunciation was clear, however some said the accent was difficult to understand. The lecturer made an attempt to adapt his speaking speed to suit non-native speakers, making it easier for many students to follow along. Despite these changes, a significant proportion of pupils continued to have difficulty understanding due to the accent. On the positive side, students were quite comfortable asking questions, indicating significant engagement and a decrease in language-related anxiety.

The pie chart summarizes all feedback on cultural differences into two main sentiment groups (fig. 2). The Positive section merges the favorable responses from "Teaching Style Matched Expectations" (123 students) and "Awareness & Respect for Cultural Norms" (132 students), amounting to a total of 355 positive responses. This accounts for 88.75 % of all cultural feedback received. The Negative segment includes the 45 students who reported that "Communication Styles Affected Understanding," making up 11.25 % of the total responses. The chart clearly shows that positive experiences with cultural differences were predominant, highlighting the lecturer’s cultural sensitivity and effective teaching style, although some students did face difficulties related to differing communication styles.

 

Fig. 2. Cultural differences: overall student feedback

 

This stark contrast between the largely positive reception of the lecturer’s cultural understanding and teaching approach and the unique challenge created by communication styles provides critical insight for international education. It implies that, while explicit cultural respect is highly valued and effectively delivered, more subtle, ingrained communication patterns (such as directness or indirectness) pose a more persistent barrier to complete understanding. Addressing this particular gap—perhaps through clearer signaling of intent, controlled opportunities for clarification, or brief instructions on communication norms – could improve the learning experience for a sizable segment of the student population.

This combined pie chart summarizes all student feedback on Technology & Engagement into two main sentiment groups (fig. 3). The Positive segment includes favorable responses from three areas: "Effectiveness of Online Platform" (120 students), "Use of Engaging Methods" (113 students), and "Accessible & Well-Structured Materials" (128 students), amounting to a total of 361 positive responses. This accounts for 87.2 % of all feedback in this category. The Negative segment represents the 53 students who experienced "Disruption from Technical Issues," making up 12.8 % of the total. The chart clearly illustrates that while most students found the digital learning tools effective and engaging, a significant minority were affected by technical difficulties such as lag.

 

Fig. 3. Technology and engagement: overall student feedback

 

The data reveals a key insight: the strong quality of well-structured content and engaging teaching methods served as an important safeguard against technical difficulties. Although disruptions were the most frequently reported negative aspect in this area, the overall learning experience remained highly positive. This suggests that investing in solid, accessible course design and dynamic pedagogy is essential for maintaining resilience in online learning environments. Such investments help minimize frustration when technical problems inevitably occur, enabling learning to continue smoothly with minimal disruption.

This pie chart offers a comprehensive summary of overall student evaluations by grouping all feedback into two primary categories (fig. 4). The "Total Positive Responses" segment combines the highly favorable results from three areas: students willing to recommend the speaker (125), those who felt the lecture surpassed expectations (117), and those motivated to learn more about Polish culture (133). Together, these account for 375 positive responses, making up a substantial 85.8 % of the total feedback. The smaller "Neutral/Negative Responses" segment includes 62 responses, or 14.2 %, representing the minority who did not share the positive sentiments. This visualization clearly highlights the strong overall approval and success of the lecture.

 

Fig. 4. Overall evaluation: consolidated student feedback

 

The exceptionally strong positive response, especially the widespread inspiration for intercultural learning, reflects a success that goes beyond simply conveying information. It demonstrates that the lecture accomplished a deeper educational objective: encouraging global curiosity and cross-cultural interaction. The high levels of advocacy and satisfaction highlight that the blend of clear communication, cultural awareness, and engaging presentation made the learning experience both impactful and memorable. This session was not only informative but also transformative, effectively bridging cultural divides and inspiring continued exploration.

Discussion and conclusions

This study provides valuable insights into how language, culture, and technology influence the success of international guest lectures for Indonesian postgraduate students. Understanding these aspects is critical to improve cross-cultural communication, inclusive learning, and virtual teaching. The talk relates these findings to previous research and emphasizes the consequences for educators and institutions.

The findings on language and communication difficulties are consistent with previous studies emphasizing the need of precise pronunciation and speech changes in cross-cultural education. According to Jenkins [4] and Widowati [16], accent discrepancies and rapid speaking speeds frequently impede comprehension among non-native speakers, resulting in cognitive overload and dissatisfaction. The study reveals that, while the majority considered the lecturer’s pronunciation understandable and welcomed the altered speaking speed, a sizable minority continued to suffer with accent-related issues. The partial discomfort with comprehension supports Flowerdew and Miller’s [3] claim that linguistic accommodation must be constant and attentive of varied learner capacities in order to alleviate language anxiety and enhance engagement, particularly in online settings where nonverbal clues are limited.

Regarding cultural differences, the prevalence of positive comments on teaching style congruence and respect for cultural norms is consistent with Hofstede’s [6] cultural dimensions theory, which emphasizes how educational expectations are strongly established in national cultural characteristics. The Indonesian students’ appreciation for the lecturer’s cultural sensitivity is consistent with Gay’s [26] principles of culturally responsive teaching, which emphasize the importance of recognizing and respecting students’ cultural identities in order to foster trust, motivation, and effective learning. However, the persistence of issues associated with different communication styles, such as directness versus indirectness, demonstrates a deeper level of intercultural complexity. This is congruent with Ariffin et al. [7], who state that mismatched communication patterns obstruct full understanding even when express respect is present. Addressing these modest but significant disparities is critical for promoting truly inclusive international education.

The technological engagement findings shed light on the significance of digital infrastructure and pedagogy in virtual international lectures. While technological disruptions were a common unpleasant experience, the overall favorable response to the online platform’s effectiveness and use of interactive approaches reflects Moore et al.’s [9] emphasis on the potential of well-designed digital tools to improve learning. The findings also support Hrastinski’s [10] notion that synchronous interaction methods, such as polls and breakout rooms, are essential for engagement. However, interruptions caused by connectivity concerns reflect ongoing challenges found in Laurell et al.’s [27] work, emphasizing the importance of solid technology settings and institutional assistance in minimizing disruptions and retaining student focus.

The overall favorable review of the lecture – including recommendations, exceeding expectations, and inspiration to learn about Polish culture – indicates a successful integration of language clarity, cultural sensitivity, and engaging digital delivery. This holistic success is consistent with Deardorff’s [13] model of intercultural competence, which emphasizes that significant international educational experiences include cognitive, affective, and behavioral components. The lecture’s ability to arouse curiosity beyond knowledge transfer exemplifies transformative learning outcomes, in which students progress not only academically but also gain intercultural motivation. This finding is especially significant in the context of internationalization in higher education [1], where promoting global competency is a primary goal.

The research findings also highlight the safeguarding impact of good course design and pedagogical tactics against technological obstacles, which is corroborated by Kim and Elder and Salo et al. [5, 29]. Well-structured materials and engaging learning methods are essential for sustaining pleasant learning experiences in the face of technical interruptions. This discovery is consistent with the resilience hypothesis in education, which emphasizes how strong academic design and teacher adaptation can minimize negative influences such as technology interruptions in various learning contexts. To optimize outcomes, practitioners must invest in course quality and teacher training in addition to technical changes.

Finally, the study adds to the literature that advocates for culturally sensitive teaching as a means to promote student engagement and accomplishment in international contexts [24, 26]. The lecturer’s adaption to Indonesian cultural norms and communication preferences exemplifies best practices for inclusivity and motivation. Such culturally sensitive approaches are critical for preventing student alienation or cognitive dissonance, resulting in a supportive classroom environment conducive to active learning. Future guest lecturers can benefit from this strategy by incorporating cultural sensitivity training into their preparation for both online and in-person overseas engagements.

This study demonstrates that effective international guest lectures necessitate a multidimensional approach that considers linguistic clarity, cultural sensitivity, and technological involvement. While the majority of students responded positively to pronunciation adjustments, respectful teaching techniques, and engaging digital tools, there are still issues with accent comprehension and communication style discrepancies. Investing in strong course design and culturally responsive pedagogy can help break down barriers and create transformative learning experiences that foster intercultural curiosity and global competence. These findings have significant implications for educators and institutions seeking to improve the quality and inclusion of international virtual education, emphasizing continuous adaptation and assistance in this dynamic global context.

About the authors

Yoga Prihatin

Universitas Pancasakti Tegal

Author for correspondence.
Email: yogaprihatin@upstegal.ac.id
ORCID iD: 0000-0002-7955-8407

Ph.D. Degree, Dean of the Teacher Training and Education Faculty

Indonesia, Jl. Halmahara Km.1 Tegal, Central Java, 52121

Elchin A. Gashimov

Samara Branch of Moscow City University

Email: elchgash@mail.ru
ORCID iD: 0000-0002-3521-6915

Doc. Philol. Sci., Professor at the Department of Philology and Intercultural Communication

Russian Federation, 76, Stara Zagora st., Samara, 443081

References

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