Introduction

Higher education is when students encounter many problems and stress in life. This can negatively affect their career and social life later1. Concurrently, incivility is becoming increasingly prevalent2. Numerous studies indicate that incivility has become a growing concern recently, particularly in educational settings3,4,5, and this increase is an urgent problem4,6. Concerned about this problem, the need to address and mitigate these “incidents” is increasing7,8. Most research on incivility has been conducted in Western countries, especially in the United States, Canada, and Europe9.

In contrast, in Asia, where incivility in school environments is rising, relatively little scholarly attention has been given to it10. In Vietnamese higher education, the influence of the culture of hierarchy often causes students to endure silently when encountering inappropriate behavior from classmates, especially from lecturers or school staff11. Meanwhile, modern students have strong egos and rarely accept concessions, leading to increasingly common communication conflicts. The contradiction between the traditional culture of tolerance and the contemporary self-expression trend creates an environment where incivility is challenging to recognize and properly evaluate12. Moreover, previous studies also indicate that prolonged exposure to stressors, incivility, and negative behaviors can lead to depleted performance, compromised mental health, and exhaustion5,13. Long-term outcomes include diminished academic achievements and failure to attain educational goals.

According to the conservation of resources theory (COR), a prominent framework for describing pressure and burnout, environmental cases usually endanger or deplete individuals’ resources. During the phase when students face the adverse effects of the environment on their mental well-being, peer support is a fundamental aspect and one of the primary social support sources for mental health2. It can help enhance academic achievements and improve social skills14, while lacking peer support can reduce motivation, diminishing academic performance15. Perceived support from friends is a vital resource that individuals need to alleviate negative emotions. Consequently, recent studies highlight a growing interest in positive psychology and emotions in the learning process.

According to the conservation of resources theory (COR), a prominent framework for describing pressure and burnout, environmental cases usually endanger or deplete individuals’ resources. Psychological stress ensues when personal resources are threatened16. Perceived support from friends is a resource individuals need, mediating incivility and efficiently studying. Furthermore, the negative psychological theme has garnered considerable attention from researchers worldwide17. Consequently, recent studies highlight a growing interest in positive psychology and emotions in the learning process.

Yet, in addition to external resources like peer support, students’ internal resources, such as psychological capital, also play a crucial role in coping with environmehấyntal threats. Incivility is considered a threat to individuals, leading to emotional dysregulation and psychological issues18. On the other hand, high psychological capital instills confidence, promotes rapid goal attainment, and contributes to a positive organizational state. Carmona-Halty et al.19 examined and found that psychological capital is a persuasive predictor of academic performance and noted that psychological capital is “[only] beginning to be assessed in educational settings.” Therefore, more research is needed about psychological capital in the context of academic performance and its impact on the influence of negative factors on students’ psyche.

Stemming from the research gap on incivility and its negative impacts in the educational context in the Asian region, along with the growing interest of researchers and psychologists in the field of positive psychology, this study aims to apply COR to analyze the impact of incivility on students’ academic performance20. Specifically, the study focuses on the mediating role of psychological distress and peer support factors. In addition, the study also explores the moderating role of psychological capital in the relationship between incivility and academic performance, thereby expanding the application of COR in the educational context. The study strengthens the theoretical foundation by employing the PLS-SEM method, an advanced data analysis technique that combines theory testing and complex relationship modeling. It contributes to a deeper understanding of the interaction mechanisms between factors related to incivility in the university environment.

This study aims to clarify the current status of incivility in the context of higher education in Vietnam, laying the foundation for further research in the Asian region. This exploration was conducted in the context of an emerging economy with the primary objective of addressing three specific research questions:

(RQ1) What do the consequences of incivility look like in real-life contexts, and do victims of incivility face impacts on academic performance across the board?

(RQ2) To what extent do students’ psychological distress and peer support mediate the relationship between incivility and academic performance?

(RQ3) What is the moderating role of psychological capital in the relationship between incivility and psychological distress and between peer support and academic performance?

These results can help universities develop and enhance training programs to enable schools to understand and respond effectively to students, especially under stressful conditions.

Literature review

Conservation of resources theory (COR)

The COR is the foremost approach for describing stress and burnout, providing an alternative perspective for evaluating individuals or approaches to stressful environments20. COR is proposed as a motivational theory, asserting that individuals consistently react to adversity to protect their existing resources and acquire new ones. Resources here can include material possessions, conditions, states, and other entities perceived as valuable or helpful in achieving objectives. The fundamental premise of COR is the understanding that people strive to attain and safeguard their resources21. Whenever individuals perceive threats or actual resource losses, they employ faring tactics, such as retreating from resource-intensive actions, to defend themselves and avoid additional resource depletion22. It posits that uncivil behavior acts as a stressor, depleting personal resources.

According to COR, people can cope with the negative effects of stressors by seeking and utilizing other resources to address them, minimizing adverse effects, and avoiding problems that consume more resources23. When individuals encounter incivility, they are likely to experience negative emotions, such as mood swings and excessive worry, which can waste resources24. Meanwhile, psychological capital, a factor representing a positive psychological state of development, is considered a resource that helps individuals protect existing resources while simultaneously promoting the accumulation of new resources due to its positive psychological characteristics25. In addition, based on COR, perceived peer support functions as an essential external resource that facilitates the development of individuals’ positive psychological resources26.

In this case, when individuals face incivility, each individual’s psychological capital is activated to protect and prevent emotions from becoming damaging and extreme. Psychological capital is a resource that is concentrated to help oneself cope with negative effects such as overthinking, distraction, or even hate and hostility caused by incivility, thereby preventing. This affects learning outcomes, according to the application principles of COR.

Academic performance

When researching students, learning effectiveness is always a top concern of researchers27. It is considered an important factor, influenced by subjective factors, such as psychology, and objective factors, including the environment. In higher education, the GPA is regarded as the most effective measure of a student’s academic achievement28 and is the most commonly used indicator to evaluate academic success and effectiveness29. These indicators represent immediate results and exhibit significant similarities among individuals despite their varying learning experiences. Therefore, a growing consensus is that non-cognitive factors, such as emotions, mood, stress levels, and life satisfaction, can significantly influence academic performance30. In this study, academic performance is assessed based on students’ self-assessment of their competence, effectiveness, and the extent to which they meet their expectations.

Incivility

Over the past two decades, incivility has been extensively studied in organizational contexts31. Specifically, incivility is becoming increasingly prevalent and causing serious adverse problems in organizations32,33. It has been likened to termites, as it eats away at the organization slowly but severely34. However, there is still limited research examining the effects of incivility in educational contexts. Considering the context of this study, student-experienced incivility may originate from faculty, school staff, or fellow students. These individuals represent those involved in students’ academic lives, and including them allows for a more accurate assessment of how frequently incivility occurs within the educational environment.

Andersson and Pearson35 define incivility as behavior that is disrespectful to others and violates the norms of respect. It includes low-level deviant behavior such as belittling, paying little attention to what others say, caring little about their opinions, or ignoring/excluding them from social relationships36. Additionally, incivility refers to uncertainty about the intention to harm or cause harm to others. It includes low-intensity negative verbal behaviors with unclear harmful intentions37.

The severity of incivility is often underestimated. For this reason, incivility is defined as being less intense than bullying38, but it is more common in life. Bullying is a frequent and intense physical impact or behavior directed at a specific object to cause harm to that person39, and the antecedents of such behavior have also been highlighted in previous studies40,41. Meanwhile, incivility is simply an expression of disrespect, annoyance, contempt, and undervaluing of opinions, as well as an act of expressing dissatisfaction, sometimes unintentionally. Its purpose is vague and not transparent, like bullying36. This behavior can be expressed through intentionally underestimating someone with words, sarcasm, irony, scolding, or using disrespectful and unprofessional language. In the context of this study, incivility is also manifested through nonverbal actions and gestures, such as glancing, glaring, staring, pushing, or issuing commands intended to enforce obedience.

The relationship between incivility and academic performance

Over the past decade, studies from multiple countries have shown that 70% of students consider incivility a moderate to severe problem42. In educational settings, incivility negatively impacts students’ learning by inducing psychological distress, dissatisfaction with the academic environment, and a significant decline in academic performance43. This may be attributed to students becoming distracted, emotionally affected, or preoccupied with the perpetrator’s behavior. Sometimes, they may experience emotional hurt or develop thoughts of retaliation. Such responses ultimately divert their focus from learning and hinder their academic performance. Studies have also noted the negative consequences of incivility, including poor work performance and emotional exhaustion44,45. Incivility can negatively impact the academic performance of the entire education system46, reduce student academic performance, and lead to burnout and physical problems47. If the intensity of the incivility increases, it will cause psychological damage to the sufferer. It is detrimental to the learning process. It leads to loss of concentration, psychological stress, dissatisfaction, increased attention to the perpetrator, emotional trauma, or even worse, the intention to take revenge for this behavior.

H1: Incivility negatively influences academic performance.

Psychological distress as a mediator

Psychological distress is the result of being exposed to the negative effects of mental stress, fatigue, and anxiety. It includes a range of symptoms of mental exhaustion, fear, anxiety, and mood disorder48. Psychological distress is defined as a negative mental state characterized by emotions related to fear and anxiety49. It is also an unpleasant emotional state, especially when an individual experiences it in response to a stressor48.

Heffernan and Bosetti50 suggested that incivility at school can contribute to increased mental health problems, causing psychological stress. COR theory also posits that when individuals are threatened by the depletion of actual resources or the loss of potential resources, harm is likely to occur20,26. Numerous studies have shown that incivility not only damages physical well-being but also causes significant psychological harm, leading to emotional exhaustion and mental strain51,52. Furthermore, students report stress as the most common health factor affecting their academic performance53.

Previous studies have shown evidence of an inverse relationship between academic performance and psychological distress53,54. Although some stress and pressure are necessary for optimal academic performance, psychological stress can impair academic performance55, especially when the stress originates from distracting or demotivating factors, such as incivility. The psychological stress and distress it causes can impair academic performance56.

In previous studies, negative emotions have also been found to affect academic performance, increasing the risk of dropping out and poor educational outcomes57,58. These negative emotions often stem from life events, such as personal conflicts, particularly the impact of the learning environment, as most students’ time is spent on study-related activities. In the context of this study, the source of negative emotions is incivility, a factor identified as potentially having a detrimental impact on academic performance.

H2: Psychological distress mediates the relationship between incivility and academic performance.

Perceived peer support as a mediator

According to COR, environmental conditions frequently hinder or contribute to the shortage of human resources. At this time, individuals tend to utilize all their remaining resources to cope with those adversities. Meanwhile, support from people around is an external resource but has a positive impact, helping to improve negative psychological factors. Peer support is a crucial source of social support for students and plays a key role in personal development during this stage2,59. Peer support influences students’ perceptions, beliefs, and emotional experiences. They are essential for learning, significantly impact students’ lives60, and serve as a vital psychological resource that helps adolescents cope with psychological problems.

In addition, according to Boud and Cohen61, perceived peer support refers to identifying and actively using social resources—higher students seeking advice from friends about life problems and coping with stressful situations62. When confronted with incivility, students seek empathy and psychological support or share their experiences with their peers. These actions serve as coping mechanisms, helping to alleviate the negative impact that incivility may have on the individual. Exposure to incivility at school has a negative effect on academic performance. Exposure to incivility at school has a negative impact on academic performance. Accepting peer support can improve and promote academic performance14. It also has a supportive effect in coping with stress, acting as a valuable resource to reduce the negative impact of threats and alleviate secondary stress caused by these threats63. Peer support is perceived as a valuable resource that people need and is considered to mediate the relationship between university incivility and academic performance. Therefore, the study proposes the following hypotheses:

H3: Perceived peer support mediates the relationship between incivility and academic performance.

The moderating role of psychological capital

Psychological capital has a positive correlation with the essence of each individual, enabling that individual to achieve positive educational outcomes64 and providing insight into who individuals are and what they will achieve from a positive development perspective. It is “a positive psychological state manifested in the process of an individual’s maturation and development”65. Psychological capital is positively related to academic engagement and learning experiences66. It identifies four primary resources: self-efficacy, hope, optimism, and resilience25, which collectively represent a positive psychological inclination toward personal development67. This set of capacities serves as accessible resources that enhance individual performance and behavioral outcomes68. People with high psychological capital are consistently confident and proactive in overcoming challenges, demonstrate resilience in adversity, and remain optimistic. Psychological capital is being researched more in the academic context and is related to performance69.

In recent years, researchers have begun to investigate the impact of psychological capital at both the group and corporate levels70. The benefits of high psychological capital have been explored in previous studies71,72,73. Researchers have suggested that psychological capital can be moderated to help mitigate undesirable outcomes associated with psychological issues74,75,76. Individuals with higher psychological capital tend to experience lower stress levels and are less likely to abandon tasks67. Psychological capital is also associated with reduced stress and psychological exhaustion, increased job satisfaction, and mental health77,78. Moreover, resilience, as a core component of psychological capital, is regarded as a psychological strength that reflects mental endurance and plays a pivotal role in sustaining individual performance, particularly in situations characterized by psychological stressors79. Within the COR framework, psychological capital is identified as a resource that enables individuals to preserve and prevent further loss of resources by fostering positive psychological attributes. Additionally, results show that psychological capital moderates the impact of incivility on work-related psychological distress80. To mitigate the negative impacts of dissatisfaction and uncivil behavior, researchers have proposed positive psychology as a motivator for individual development and recovery25,81.

According to Luthans et al.82, psychological capital is a flexible state rather than a static characteristic. Therefore, these personal strengths and psychological resources can be enhanced. Psychological capital may serve as a moderator, helping to explain the means of the association between social support and academic performance83. Several new studies suggest that psychological capital promotes students’ academic performance66,78,83. According to Chughtai and Khan84, self-efficacy, as a component of psychological capital, is considered a core psychological resource that reflects an individual’s belief in their ability to accomplish tasks. This factor not only enhances intrinsic motivation but also improves engagement and work performance in challenging contexts85. Increased engagement, in turn, can help mitigate the negative impacts on work performance86. This effect becomes even more pronounced when combined with perceived peer support, as the COR suggests that such support can expand an individual’s existing resources and compensate for those lacking or lost87. Therefore, this study has developed the following research hypotheses:

H4: Psychological capital moderates the relationship between incivility and psychological distress.

H5: Psychological capital moderates the relationship between perceived peer support and academic performance.

The conceptual model illustrating the hypothesized relationships is presented in Fig. 1.

Fig. 1
figure 1

Conceptual model.

Methodology

Sample and procedures

This research adhered to the Declaration of Helsinki and was ethically approved by the Ethics Committee of Ho Chi Minh City Open University. It adheres to respect, autonomy, and confidentiality principles, with all participants providing informed consent. Additionally, the research has received approval from the same Ethics Committee (Decision No. 2543/QĐ-ĐHM, dated September 11, 2023).

The research framework for six hypotheses indicates the connection between incivility and students’ academic performance. University learners were selected as the subjects for the survey through convenience sampling. The survey process began with an email outlining the research and the research purpose, encouraging voluntary participation and ensuring security commitments. The questionnaire was designed with a section for basic demographic information, while the subsequent section contained questions related to the main content, measured on a 7-point Likert scale varying between “Completely Disagree” and “Completely Agree”. At the beginning of the questionnaire, some expressions of incivility (malicious glancing, glaring or staring, using disrespectful, sarcastic, offensive statements, ironic words, …) are given. Questionnaires were sent to universities in Vietnam through the student management department and the student support department to reach the right group of students. Questionnaires were sent to universities in the area through the student management department and the student support department to reach the right group of students. The information question appeared with the content “Recently have you felt like you are facing some incivility behavior (the above expressions) from friends, teachers or school staff?” to ensure that the students participating in the survey are the ones who can answer the questionnaire most accurately. This inclusive approach provides a comprehensive understanding of the issue, as these groups represent all key actors within the academic environment with whom students interact frequently. Each group may contribute to incivility in different forms and dynamics. Teachers may exert authority-based incivility, staff may show procedural disrespect, and peers may engage in social exclusion or verbal hostility. Including all three sources allows the study to capture the full scope and frequency of incivility students may encounter during their university life. The survey aimed to collect 250 questionnaires; however, by the end of the data collection period, 266 responses were obtained.

After being encoded, the data were analyzed using SmartPLS (version 4.0), available at https://www.smartpls.com, to perform partial least squares structural equation modeling (PLS-SEM), for which SmartPLS is considered a leading analytical tool. The sample size was sufficient for PLS-SEM analysis, comprising 28 observed variables across six constructs. PLS-SEM is deemed the most suitable new option for replacing covariance-based structural equation modeling88. Furthermore, PLS-SEM has recently undergone modifications, especially the moderating and mediating effects analysis89.

Of the 266 collected responses, the majority were female, comprising 64.7% of the students, and 35.3% were male. Most surveyed students belonged to the economics-management field, accounting for 40.2%, followed by social sciences and humanities group students with 27.1%, and natural sciences and engineering with 21.4%. Finally, the remaining 11.3% were surveys conducted by students in the Medical field. All participants in this survey were students enrolled at universities in Vietnam.

Measures

Incivility behavior is measured using six items from the incivility behavior scale developed by90. The concept of perceived peer support is adapted from the research by2, consisting of four questions. At the same time, psychological distress is measured using six scale items in91. The questions on psychological capital are derived from the compound PsyCap scale by92. The academic performance is measured by four items from93. All measurement scales used in this study were selected based on their conceptual alignment with the theoretical constructs under investigation. Additionally, these scales have been widely adopted in previous studies on similar topics across various geographical contexts.

Results

Assessment of the measurement model

Data validity

The scale evaluation was implemented to consider the reliability of the structures in the research. The reliability can be estimated by Cronbach’s α (α) and composite reliability (CR). The general principle for those criteria is that they should exceed 0.70. The Cronbach’s α values are above the 0.70 threshold, and all composite reliability values, ranging from a minimum of 0.867 (PPS) to a maximum of 0.907 (PsyDis), meet the requirements. Based on these results, it can be confirmed that the concepts in the model are highly reliable. At the same time, the lowest composite reliability value was 0.907, and the highest was 0.933 (> 0.7), indicating that the observed variables meet the reliability criteria94.

Data processing outcomes indicate the lack of multicollinearity, as all items’ variance inflation factor (VIF) values are below the suggested threshold of 5. Convergent validity was assessed using the extracted average variance, where values higher than 0.5 should be achieved95. The association level between variables is demonstrated through the outer loading (λ) scores, with values greater than or equal to 0.7, which were satisfied by the observed variables96. The results are presented in Table 1.

Table 1 Data validity criteria.

Discriminant validity was also assessed using the Heterotrait-Monotrait Ratio (HTMT). The correlation values for all pairs were below the maximum threshold of 0.85, indicating sufficient distinctiveness (see Table 2).

Table 2 Heterotrait-Monotrait ratio.

Examination of the structural model

The research model’s structural model of total variance is calculated with R2. It measures the extent to which the sample can illustrate the data variability. A higher R2 value indicates a more adequate explanation of the relationships within the model. R2 values of 0.75, 0.50, and 0.25 are considered substantial, moderate, and weak, respectively97. The R2 (Table 1) of academic performance (0.405), perceived peer support (0.096), and psychological distress (0.229) indicate a relatively predictive level. The R2 of academic performance is 0.405, suggesting that all the independent variables collectively demonstrate 40.5% of the variance in academic performance. Using the blindfolding predictive validity assessment method, the Q2 values in Table 1 for academic performance (0.156), peer support perception (0.087), and psychological distress (0.194) indicate a substantial predictive level.

Hypotheses testing

The bootstrap technique determines the statistical significance of research hypotheses. Hair Jr et al.98 propose using bootstrapping confidence intervals to test significance in cases where the bootstrap distribution of indicator weights is skewed. The bootstrapping method calculates T-values to examine whether there is a significant difference in path coefficients from zero. In this study, non-parametric significance testing is conducted through 5,000 bootstrap iterations to ensure the reliability of the linear structural model. The coefficients are also obtained using the PLS algorithm.

Table 3 Study results.

Data analysis shows that the results are as predicted in the hypothesis. The degree of influence of incivility on academic performance varies depending on the direct impact and through positive and negative intermediaries. Expressly, hypothesis H1 is accepted with β = −0.127 (p = 0.065). This result proves that the assumption of this study is correct that incivility has a negative impact on academic performance. Besides, when considering the mediating role of perceived peer support, although the positive aspect of perceived peer support cannot eliminate the negative impact of incivility on academic performance, it somewhat reduces the negative level (β=−0.115; p = 0.000). In this case, the negative relationship between incivility and academic performance has been reduced through the mediating effect of perceived peer support.

Psychological distress is the opposite if perceived peer support is a positive factor. In hypothesis H2, with β = −0.132 (p = 0.000), under the influence of the mediator psychological distress, a factor of negative psychological nature, it increases the level of impact of incivility on academic performance. More specifically, when faced with incivility situations, if individuals are having psychological problems, their academic performance will be more negatively impacted. Through this, it can be seen that the exact impact of incivility on academic performance, with a direct relationship, affects through intermediaries is positive (perceived peer support) and negative (psychological distress). The results were entirely consistent with the proposed hypotheses. The level of impact tends to increase or decrease depending on the positive and negative nature of the intermediate factor.

However, the surprising finding is that hypothesis H5 is rejected (β=−0.086; p = 0.176). Specifically, psychological capital does not demonstrate its moderating effect on the connection between perceived peer support and academic performance. On the contrary, with the weak effects (β=−0.110; p = 0.084), psychological capital is confirmed to moderate the impact from incivility to academic performance. A summary of the findings is presented in Table 3.

Discussion and conclusion

Based on the COR framework, this study was conducted to test the direct relationship between incivility and academic performance and examine the mediating role of peer support and psychological distress. In addition, psychological capital was also included in the model as a moderator of the relationship between incivility and psychological distress, as well as how perceived peer support affects academic performance. Although there are many studies on incivility, the integration of these critical factors is often overlooked. The proposed research model was evaluated for its potential to explain the impact of these factors, and clear evidence was provided through the analysis of empirical data.

Specifically, incivility has been shown to negatively impact academic performance. According to COR, environmental circumstances often threaten or deplete human resources. When students face incivility without timely resistance, it leads to fear and anxiety, subsequently affecting academic performance. Prior investigations have confirmed the negative consequences of incivility, including insufficient attachment and job performance80,99. Indeed, incivility can negatively impact academic achievement in education46. In the classroom, it affects learning, causing students to report decreased satisfaction with their program, psychological distress, and poor academic performance43. This finding is consistent with previous research (e.g100,101)., that students exposed to incivility and similar events show problems with cognitive functioning and achievement, which affect their academic performance.

Next, the results of this study also showed that the mediating role of perceived peer support negatively affected the impact of incivility on academic performance. As expected, although this was still a negative impact, the level of impact between incivility and academic performance under the mediation of perceived peer support was reduced, demonstrating that perceived peer support had a supportive effect. Specifically, one of the primary sources of social support during adolescence, perceived peer support, is a fundamental part of the social and psychological environment2. Students who experience incivility will often seek help and support from their peers, specifically their friends. This support, even if it is simply listening, has helped individual students reduce their negative state. In addition, friends will also be a great source of academic support if someone in the group has problems with knowledge. The results of this study and previous research102,103 demonstrate that perceived peer support affects academic performance. Student academic achievements result from both psychological support and support from friends104. They are also the closest and quickest to notice when their friends show unusual behavior, even witnessing their friends facing incivility. Peers’ immediacy, closeness, and support capacity are truly immense and help reduce incivility’s impact on academic performance to some extent.

Meanwhile, psychological distress, which plays a similar role to perceived peer support, exacerbates the negative impact of incivility on academic performance. According to COR, when individuals experience adverse events, this will cause a loss of resources and lead to negative psychological effects20. It proves that students’ moods will be negatively affected when they encounter incivility. It will cause dissatisfaction, skepticism, and self-questioning if they cannot find a reason to explain their behavior. Constantly thinking and questioning this issue causes individuals to waste and lose resources, affecting their academic performance. In addition, incivility, by definition, is also a manifestation of disrespect. In the educational environment, students often have an equal role with their friends while they are customers of academic services. Finding themselves facing incivility and disrespect makes students feel out of place in a place where they should receive protection and behave correctly, thus neglecting their studies.

The negative impact of incivility is substantial. However, the negative impacts depend on a person’s psychological capital, as it gives individuals the mental flexibility to cope effectively with issues105. The results of this study demonstrated that psychological capital plays a moderating role in the relationship between incivility and psychological distress. When individuals have high psychological capital, with positive psychological characteristics and thinking, it will also help students be self-aware of what is essential and not worth worrying about, directing their attention to better values. It helps them understand that incivility from someone may not be intentional or that person is not significant enough to make them pay attention and think so much, thereby making their psychology and spirit not affected too much. Moreover, this way of thinking and thinking of people with psychological capital is also the way the resource conservation principle of COR operates.

In Kos’s study106, results show that increased perceived peer support will lead to more psychological capital and ultimately improve academic performance. However, contrary to this hypothesis, the study does not find experimental evidence that it moderates the connection between perceived peer support and academic performance. An explanation for this could be that psychological capital and perceived peer support for the students in this study are unrelated. Psychological capital is considered a subjective personal capability about an individual’s mental state75, while peer support is an objective impact from external sources. Peer support is an active support source for individuals107. However, the perception and awareness of its existence vary from person to person. Everyone’s support sources are different, it cannot be assumed that students with similar psychological capital will have equivalent perceptions of support.

Moreover, students experiencing discourteous behavior have their knowledge acquisition affected, leading to adverse effects on academic performance. Even with high psychological capital, it cannot compensate for the impacted academic knowledge. In this case, students’ psychological capital becomes less significant, and its role is replaced by peer support. A possible reason is that for students enduring incivility impacting academic performance, psychological capital initially provides mental support. However, as students transition to receiving peer support, psychological capital may no longer exert its intended effects.

Implications

This study holds significant implications for understanding incivility and students’ academic performance. Firstly, the research strongly reflects the impact of all factors related to students’ incivility. Perceived peer support was identified as helping minimize incivility’s impact on students. What is more, this factor appears to help improve academic performance. Secondly, findings regarding psychological distress are considered crucial in the relationship between incivility and academic performance. The research also focuses on the psychological capital moderated impact in the influence of negative factors on students’ academic performance. Students are likely to have poorer academic performance if they do not receive support from perceived peer relationships.

Creating a positive and safe learning environment to protect students from the adverse impacts of incivility is essential. This requires collaboration, engagement from all parties, including students, faculty, and administrators. Additionally, educational institutions should implement counseling and psychological support services while developing life skills training programs. By applying the proposed suggestions and solutions, there is a need to enhance training and education on communication skills, conflict resolution, building relationships, and social connections.

Limitations and directions for future research

Although the discoveries are meaningful, this article has limits and exits several available aspects for forthcoming studies. All concepts were considered through self-report questionnaires. Additionally, the study only focused on testing the moderating effect of psychological capital on the relationship between incivility and psychological distress without finding evidence to support psychological capital in moderating the connection between perceived peer support and academic performance. Therefore, future research may explore assessing the moderating impact of psychological capital on other relationships for a more comprehensive understanding.