Introduction

In daily volunteer work, volunteers may not only receive praise from their service recipients but also face incivility, such as non-compliance, incomprehension, and even harassment and verbal abuse from their service recipients (Dawood, 2013; Paull and Omari, 2015). Incivility is defined as low-intensity deviant workplace behavior with ambiguous intent (including intentional and unintentional harm) to harm the target (Schilpzand et al. 2016). The ambiguity of intention in uncivil interactions creates uncertainty for targets and observers as to whether the instigator acted deliberately or unintentionally. For example, when a volunteer faces incivility from the recipient, they cannot ascertain whether the incivility is personally directed at them or their organization, or arises from intentional hostility or situational stress. Incivility from customers undermines happiness (Cortina et al. 2001), and can even lead to depression (Lim and Lee, 2011; Burns, 2022). During the COVID-19 pandemic, many epidemic-prevention volunteers reported that customer complaints and verbal abuse caused them to suffer psychological breakdown (Li et al. 2023; Vagni et al. 2020). Even after work, they continued to recall negative interactions there. Existing studies point out that incivility targeted at volunteers is widespread (Trent and Allen, 2019), harming emotions and performance at work (Sliter et al. 2015; Wilson and Holmvall, 2013). Most research on volunteers has focused on their personalities and organizational management. By contrast, the impacts of volunteer service recipients on volunteers has received limited attention.

To date, the impact of incivility from service recipients on volunteers and its underlying mechanism remains unclear. This study therefore examines how incivility affects volunteer engagement and burnout through a three-wave, time-lagged survey of volunteers. According to the conservation of resources (COR) theory, individuals need to devote considerable resources to handling negative stimuli (Hobfoll, 2001). Volunteers use cognitive resources to resolve conflicts with service recipients and emotional resources to accomplish emotional labor (Allen and Augustin, 2021). Regardless of whether incivility is successfully resolved, it will impact individuals’ cognition and emotions, and ultimately consume their resources. After work, individuals need to detach themselves from the negative incidents, to restore their resources. This is psychological detachment, the ability of individuals to detach from work and stop work-related thinking during non-working hours, without interference from work-related issues (Sonnentag, 2012). Research suggests that psychological detachment is beneficial and positively impacts work engagement (Sonnentag et al. 2008). Therefore, we assumed that psychological detachment was the core mechanism through which incivility from service recipients affected volunteer outcomes.

In addition, hostile attribution bias reflects an individual’s interpretation of negative events (Helfritz-Sinville and Stanford, 2014). Individuals with hostile attribution bias are more likely to perceive the external environment or the intentions of others as hostile when faced with ambiguous situations (Tuente et al. 2019). Few previous studies have focused on volunteers’ hostile attribution bias. Volunteers exhibit different levels of agreeableness and emotional stability (Ackermann, 2019). There may be volunteers who are more capable of detaching from incivility, but also sensitive and vulnerable ones. Vulnerable and sensitive volunteers are more likely to react negatively after experiencing incivility (Sliter et al., 2015). When volunteers’ hostile attribution is high, they are more likely to perceive the incivility from the recipients as deliberate hostile behaviors, which makes them fear continuing harassment: the persistent thought “Why is this person doing this to me?” will prevent psychological detachment. Therefore, we believe that volunteers’ hostile attribution bias will moderate the relationship between incivility and psychological detachment. Volunteers with a higher degree of hostile attribution bias will amplify the negative effects of incivility.

This study uses the COR theory to build a moderated mediation model to reveal the mechanism of the influence of incivility on volunteer engagement and burnout. The main theoretical contributions are as follows: First, this study may be one of only a few that focuses on service recipients’ incivility to volunteers. Most previous studies have investigated organizational management factors that influence volunteers (Hallmann and Harms, 2012; Allen and Augustin, 2021). Some studies have analyzed the impact of service recipients’ positive behaviors toward volunteers (Maas et al. 2021; Kulik, 2021; Bang and Ross, 2009), but few studies have focused on negative behaviors such as incivility (Dawood, 2013; Paull and Omari, 2015). Second, this study measured psychological detachment as a mediating variable to further explain the impact of incivility on volunteer engagement and burnout. Finally, by analyzing the hostile attribution bias of volunteers, this study revealed that individual differences among volunteers cannot be ignored. This explains the boundary conditions for the impact of incivility.

This paper is structured as follows: first, we propose the research hypotheses of this study based on a review of relevant prior studies and practical issues. Next, we show how the path analysis model was used to test research hypotheses. Finally, after discussing the research results, we propose practical suggestions to help volunteer organizations assist volunteers in dealing with incivility.

Theory and hypotheses

Incivility and conservation of resources

The COR theory provides a useful theoretical basis for explaining how incivility in the workplace leads to undesirable results, such as loss of work engagement, turnover tendency, and workplace deviance (Sliter et al. 2012; Halbesleben et al. 2014; Zhu et al. 2021). The COR theory states that individuals try to avoid resource loss when facing stressful situations (Hobfoll et al. 2018). Specifically, individuals react to actual and expected resource losses (Hobfoll et al. 2000). For example, when facing criticism from work leaders, people avoid and rationalize criticism to avoid the consumption of resources due to stress (Bhandarker and Rai, 2019). Incivility is a source of stress: if employees cannot properly deal with incivility, it will lead to work conflicts and negatively impact their work, leading to an expected resource loss. To manage incivility, they need to restrain negative emotional reactions and use many cognitive and emotional resources. Such resource loss has a strong negative impact, resulting in work burnout, depression, and other negative physical and mental outcomes (Sliter et al. 2012; Zhu et al. 2021).

For volunteers who experience incivility, recovering psychological resources is particularly important. In the work context, psychological detachment is a key factor in the resource recovery process (Schulz et al. 2019). Psychological detachment is how individuals psychologically detach themselves from work, including cognitive and emotional detachment (Sonnentag and Fritz, 2007). To achieve psychological detachment, it is not enough to simply leave the workplace; continued thoughts about work-related issues must also be stopped (Sonnentag and Bayer, 2005). Experiencing incivility from service recipients often triggers negative emotions such as shame and guilt in volunteers, making it difficult for them to let go of emotions even after ending volunteer service and to truly detach themselves from the stressful situation. Dealing with incivility consumes significant resources such as emotional regulation and coping strategies, reducing the resources available for recovery, and making it difficult for volunteers to detach themselves from their work. Overall, experiencing incivility changes the allocation of resources for volunteers, increasing volunteers’ attention and resource inputs into negative work factors. This means that work-related cognition occupies more psychological resources, making it impossible to achieve a high level of psychological detachment.

The mediating role of psychological detachment

Volunteers who originally intended to help others are most likely to feel psychologically lost when they experience unreasonable complaints, blame, or even abuse from others during volunteer service. Paid employees can buffer the impact of incivility from service recipients by viewing work pay as a service motivation (Megeirhi et al. 2020). However, volunteers’ intrinsic motivation is altruistic, and external motivation is weaker (Hallmann and Harms, 2012; Geiser et al. 2014). As a result, when volunteers experience more incivility, their feelings will likely be contradictory and confused: “Why am I doing good deeds when these people still blame me?” Such internal contradictions will continue to linger in volunteers’ minds. Even with intrinsic motivation, this negative social feedback can frustrate volunteers’ identification with volunteering. Previous studies have shown that rumination and a sense of cognitive dissonance will reduce their psychological detachment (Ingram, 2015). Therefore, we speculated that when faced with incivility, volunteers would find it difficult to achieve psychological detachment. Based on this, we propose the following:

H1: Volunteers’ experiences of incivility from service recipients are negatively related to their ability to psychologically detach from work. The more incivility experienced by volunteers, the more difficult it is for them to achieve psychological detachment.

Psychological detachment, volunteer burnout, and volunteer engagement

According to COR theory, psychological detachment is beneficial as it allows employees to stop work-related thinking after work and temporarily eliminate work stress, thus avoiding the continued consumption of psychological resources and reducing burnout (Sonnentag, 2012). Psychological detachment allows employees to recover resources. The recovered resources can then be used for subsequent work, enabling individuals to focus more attention and have a greater sense of engagement at work. Previous studies have found that when employees experience customer incivility, it can lead to work conflict, reduce employees’ psychological detachment, and affect work performance (Nicholson and Griffin, 2015; Volmer et al. 2012).

After experiencing incivility, volunteers naturally feel a negative emotion such as shame, unhappiness, or and guilt. This emotion casts a net over the individual’s mind, likely causing them to proactively dwell on the negative event (Koster et al., 2011). When the volunteer then encounters a similar situation in their next volunteering, challenging emotion associated with the previous negative situation is activated. This situation recalls hinders the process of psychological detachment, making it difficult for them to effectively restore their resources. Volunteers experiencing difficulty in achieving psychological detachment will focus on the negative factors at work. This forms a negative experience of volunteer service work, which, in turn, aggravates burnout. If volunteers frequently experience incivility at work, burnout will remain at a high level for a long time. When the level of psychological detachment is low, it is difficult for volunteers to fully engage in restoring resources. As a result, the energy they could devote to the next work session will decrease. In contrast, if volunteers can achieve a higher level of psychological detachment, burnout will decrease, and the next volunteer service is still expected to devote more energy. Based on this, we propose the following:

H2: Psychological detachment mediates the relationship between incivility and volunteer outcomes.

H2a: Psychological detachment mediates the negative correlation between incivility and volunteer engagement.

H2b: Psychological detachment mediates the positive correlation between incivility and volunteer burnout.

The moderating role of hostile attribution bias

Different individuals experience different feelings and reactions to uncivil encounters (Alola et al., 2019). Hostile attribution bias refers to individuals’ interpretation of negative events. Individuals with high hostile attribution bias tend to attribute hostility to behaviors they experience, even if that was not the intention (Matthews and Norris, 2002; Adams and John, 1997; Crick and Dodge, 1996). Previous studies have found that employees with higher hostile attribution bias tend to have more negative emotions (Cheng et al., 2020) and are more prone to work conflict (Zhu et al., 2021). In the context of volunteer service, some volunteers may be more empathetic and view incivility as accidental and unintentional, while others may be more sensitive and experience incivility as hostile and deliberate.

In this study, we believe that hostile attribution bias may strengthen the negative relationship between incivility and volunteers’ psychological detachment. The incivility experienced by volunteers is often accidental, and volunteers often do not know why the public or service recipients are so rude to them (Henkel et al., 2017; Torres et al., 2017). We believe that volunteers with higher hostile attribution bias naturally view incivility as intentional harm. This exacerbates the psychological conflict caused by incivility, thereby reducing volunteers’ ability to achieve psychological detachment. This psychological conflict may become more pronounced due to volunteers’ altruistic psychology. Volunteers with high hostile attribution bias will be more confused about why they are doing good deeds but still suffering from other people’s intentional blame, abuse, or even harassment. This confusion will make it more difficult for volunteers to mentally detach themselves from the negative situation.

Some studies have found that employees with strong hostile attribution bias believe they are likely to continue to be treated uncivilly in the future (Walker et al., 2014). This is likely to reduce volunteers’ psychological detachment and make it difficult for them to detach at all. In other words, too much worry and fear will not only lead to a reduction of resources but will also prevent them from recovering resources through psychological detachment. Volunteers with high hostile attribution bias are more likely to recall scenes of incivility outside work and worry about whether they will experience such incivility again next time.

In contrast, when volunteers with low hostile attribution bias experience incivility, they are more likely to interpret incivility as reasonable criticism and suggestions made by service recipients, rather than intentionally hostile acts against them. Therefore, at the end of their work, they will not associate incivility experiences with themselves, thereby reducing the impact of the loss spiral caused by incivility, avoiding volunteer burnout, and maintaining subsequent volunteer engagement.

Therefore, we propose the following hypotheses:

H3: Hostile attribution bias enhances the mediating effect of incivility on volunteer outcomes through psychological detachment.

H3a: Volunteers with high hostile attribution bias find it more difficult to detach when experiencing incivility and are more prone to disengagement.

H3b: Volunteers with high hostile attribution bias find it more difficult to detach when experiencing incivility and are more prone to increased burnout.

Method

Sample

Our survey was conducted in Zhejiang Province in the Yangtze River Delta region of China. Zhejiang is a coastal province with a developed economy and ranks among the top provinces in China. Many studies have taken it as a research site (Cheng et al., 2020; Miao et al., 2018). We obtained a directory of nonprofit organizations providing community services in 11 cities in Zhejiang Province. We randomly selected 15 nonprofit organizations in each city. These organizations provided contact information for their long-term active volunteers. We randomly selected 2500 volunteers and sent survey invitations to their mobile phones. Among them, 2135 expressed their willingness to participate in this anonymous survey. The participants in this study were volunteers who filled out the questionnaires on their own accord, without receiving any monetary compensation. We sincerely appreciate the time and effort spent by the participants.

We used a three-wave research design to reduce the likelihood of common method bias (Andersen et al., 2016; George and Pandey, 2017) At time point 1, we investigated incivility and hostile attribution bias, with 1954 volunteers completing an anonymous survey. At time point 2 (two weeks later), we investigated psychological detachment, with 1772 volunteers completing the survey. At time point 3 (two weeks later), we investigated volunteer engagement and burnout. After each survey, we sent thank-you letters, and after the first two surveys, we informed participants that there would be follow-up surveys in two weeks. Eventually, 1675 volunteers completed all the surveys, with a questionnaire recovery rate of 78.45%, which is similar to those reported in previous studies (Trent and Allen, 2019).

The final sample consisted of 1675 respondents, of whom 477 (28.5%) were male, and 1198 (71.5%) were female. The mean age of the respondents was 25.18 (SD = 8.07). Regarding highest education level completed, 35 (2.1%) reported primary school, 699 (5.9%) middle school, 219 (13.1%) high school, 1166 (69.6%) bachelor degrees, and 156 (9.3%) master’s or doctoral degrees. The mean years of volunteering was 2.34 (SD = 1.59). The volunteers in our study were involved in a variety of volunteer programs, including traffic order maintenance, environmental protection monitoring, elderly care, and so on. The sample information in this study is similar to previous surveys of Chinese volunteers by Wu et al. (2018), indicating good sample representativeness.

Measures

All scales used in this study were translated from English to Chinese following a back-translation procedure (Brislin, 1970). All items were rated using a 5-point Likert scale ranging from 1 (strongly disagree) to 5 (strongly agree).

Incivility

Incivility was assessed using four items (e.g., Some people spoke aggressively toward the volunteers) adapted from Walker et al. (2014). This scale has been used to measure incivility experienced by volunteers with high reliability (Trent and Allen, 2019). Cronbach’s alpha was 0.87.

Psychological detachment

Psychological detachment was measured using four items (for example, I get a break from the demands of volunteering work.) Adapted from Sonnentag and Fritz (2007). The reliability of this scale was proven by Sonnentag et al. (2010). Cronbach’s alpha was 0.77

Hostile attribution bias

Hostile attribution bias was measured using six items (e.g., A person is better off if he doesn’t trust anyone.) from the hostility subscale of the California Psychological Inventory (Adams and John, 1997). The reliability of this scale has been proven in Cheng et al. (2020). Cronbach’s alpha was 0.77.

Volunteer engagement

Volunteer engagement was assessed using three items (e.g., I am enthusiastic about my volunteering) adapted from the 3-item Utrecht Work Engagement (UWE) scale (Schaufeli et al. 2017). Previous research has shown that the UWE scale has good reliability in the volunteer domain (Vecina et al., 2012; Curran and Taheri, 2021; Erks et al., 2020). Cronbach’s alpha was 0.81.

Volunteer burnout

Volunteer burnout was measured using three items (e.g., I feel emotionally drained from my volunteering work) adapted from Watkins et al. (2015). This scale has been used to measure feelings of burnout in volunteers with high reliability (Trent and Allen, 2019). Cronbach’s alpha was 0.77.

Results

Descriptive statistic, correlation analysis, and confirmatory factor analysis were performed first. The mediation and moderation effects were then tested through path analysis using Jamovi 2.1(2022), based on the R-lavaan package.

Confirmatory factor analysis

Confirmatory factor analysis (CFA) was conducted to test whether the four variables of incivility, psychological detachment, hostile attribution bias and volunteer engagement, represented distinct constructs. The results showed that the five-factor model had the best fit for the data (χ2 = 846.32, df = 153, p < 0.001, RMSEA = 0.031, CFI = 0.953, TLI = 0.941). Table 1 presents the results of descriptive and correlational analyses between study variables.

Table 1 Confirmatory factor analysis.

A Harman’s single factor test was conducted to check common method variance (CMV). The results showed the variance of a single factor was 36.95%, which was less than the suggested threshold value of 40% (Podsakoff et al., 2012). Multicollinearity issues in the model were checked using the variance inflation factor (VIF). The results revealed that the VIF value of the variables ranged from 1.17 to 1.63, which is less than the suggested threshold value of 5 (Venkatesh et al., 2012). Compared to the competition model in Table 2, the theoretical model in this study has the best fit, indicating that the five variables have good discriminative validity (Fig. 1).

Table 2 Spearman correlations.
Fig. 1
figure 1

The Conceptual Model of Incivility Impacts on Volunteer Outcomes.

Path analysis model

The path analysis model was used to test the hypotheses. The results showed that incivility was negatively related to psychological detachment (β = −0.12, p < 0.001), which supports H1. Further, incivility was negatively associated with volunteer engagement (β = −0.15, p < 0.001) and positively associated with volunteer burnout (β = 0.06, p < 0.001). Of the demographic variables, only education level was negatively correlated with volunteer engagement (β = −0.07, p < 0.001) and not correlated with volunteer burnout (β = 0.01, p = 0.401); age and gender were not significantly correlated with either volunteer engagement or volunteer burnout, respectively (ps. > 0.05).

We examined the mediating effect of psychological detachment on volunteer outcomes using a bias-corrected bootstrap procedure with 1000 bootstrap samples (MacKinnon et al., 2007). The results indicated that incivility negatively affected volunteer engagement via psychological detachment (β = −0.07, p < 0.001, 95% CI = [−0.107, −0.050]) and a positive effect on volunteer burnout via psychological detachment (β = 0.09, p < 0.001, 95% CI = [0.057, 0.121]). Therefore, H2 is supported.

To test H3, we conducted a moderated path analysis (Edwards and Lambert, 2007; shown in Fig. 2). The mediating effect of psychological detachment between incivility and volunteer engagement was strengthened by high hostile attribution bias (β = −0.09, p < 0.001, 95% CI = [−0.138, −0.070]), but not low attribution bias (β = −0.02, p = 0.062, 95% CI = [−0.045, 0.001]). The indirect effect was significant (β = −0.07, p < 0.001, 95% CI = [−0.089, −0.035]). Moreover, the mediating effect of incivility on volunteer burnout via psychological detachment was stronger when hostile attribution bias was high (β = 0.113, p < 0.001, 95% CI = [0.019, 0.078]) than when it was low (β = 0.030, p = 0.050, 95%CI = [−0.001, 0.062]). The indirect effect was significant (β = 0.07, p < 0.001, 95% CI = [0.009, 0.070]).

Fig. 2
figure 2

The Path Model of Incivility Impacts on Volunteer Outcomes.

The moderated path analysis further supported that for those with high hostile attribution bias, the impact of incivility on psychological detachment was increased (β = −0.19, p < 0.001, 95% CI = [−0.245, −0.128]), whereas for those with low hostile attribution bias, the effect was weaker (β = −0.05, p = 0.051, 95% CI = [−0.095, −0.001]).

Discussion

Our study reveals how incivility from service recipients affects volunteer outcomes. Through a three-wave survey, we found that incivility from service recipients affected volunteers’ ability to achieve psychological detachment, which, in turn, hindered their engagement in volunteer services and led to higher volunteer burnout. Further, volunteers’ hostile attribution increased this indirect effect. This study provides the following insights at the theoretical level.

First, previous studies have focused more on incivility within volunteer service organizations and less on incivility from service recipients. As pointed out by Dawood (2013) and Paull and Omari (2015), the incivility experienced by volunteers may come more from service recipients than from within the organization. Using a large sample of volunteer (N = 1675) data collected in three waves, this study found that the score of incivility from service recipients was 3.67, indicating that volunteers experienced incivility from service recipients to some extent. These findings show that research on incivility experienced by volunteers is timely and necessary, and future research should further deepen this understanding.

Second, this study introduces the concept of psychological detachment in volunteer services. Psychological detachment is a necessary process for recovering volunteer resources (Schulz et al. 2019). It exerts a significant influence on the relationship between incivility and volunteer outcomes. This study revealed the moderating role of hostile attribution bias on volunteer perception of incivility from service recipients. Incivility’s negative impact on volunteers becomes more pronounced with volunteers’ higher levels of hostile attribution bias, thereby lowering volunteer engagement. This aligns with prior research on the diversity of volunteers (Dolnicar and Randle, 2007). However, our study may be the first to use hostile attribution bias as an explanatory variable for individual volunteer differences. It should be noted that the hostile attribution bias referred to in this article does not mean that volunteers are unwilling to help others but that volunteers sometimes have neurotic tendencies (Czarna et al., 2021). The vulnerability, sensitivity, and inability to defend against external negative information brought about by neuroticism are reflected in higher levels of hostile attribution bias.

Finally, we used two negatively correlated outcome variables, volunteer engagement and volunteer burnout, as indicators of volunteer outcomes. Choosing reverse outcome variables further enhances the robustness of the model (Campbell and Fiske, 1959). It responds to previous scholars’ calls for volunteer service research to choose multiple outcome variables to improve model robustness (Clark and Watson, 2019).

Managerial implications

Volunteer organizations pay insufficient attention to incivility experienced by volunteers. (1) Given the harmful effects of incivility from service recipients, volunteer organizations should train volunteers to deal with it and prevent them from experiencing long-term psychological damage. (2) Volunteer organizations should allow volunteers to suspend volunteering work and achieve psychological detachment instead of doing service work with fatigue, which is overdrawing future volunteer behavior. Volunteer organizations may organize post-volunteer service meetings to help volunteers vent and quickly recover psychological resources (Hershcovis et al., 2018; Jang et al., 2020; Thieleman and Cacciatore, 2014) (3) Finally, this study found that volunteers with higher hostile attribution bias are more easily affected by incivility. Accordingly, volunteer organizations should arrange for volunteers with low hostile attribution bias to perform roles requiring communication with service recipients, while also identifying and conducting resilience training for volunteers with high hostile attribution bias, thereby helping them to overcome its negative effects (Parlak et al., 2022).

Limitations and scope for future study

This study has some limitations. Although two variables (volunteer burnout and engagement) were used as indicators to measure volunteer outcomes, we relied on volunteers’ self-reported data rather than more objective indicators. In future studies, we recommend that researchers use objective variables such as actual volunteer service time to better test the impact of incivility on volunteer engagement.

We encourage future researchers to explore the relationship between incivility and volunteer outcomes in more detail. For example, incivility from service recipients and from volunteer service leaders may have different effects. Compared to volunteers who need to obey service leaders, the relationship between volunteers and service recipients is more equitable. Differences in power status may alter the impact of incivility on volunteers (Hershcovis et al., 2017). Volunteers are less likely to resist incivility from leaders due to their higher leadership status, resulting in deeper psychological damage.

Ackermann (2019) suggests that more attention should be paid to the effects of differences in volunteers’ individual personality traits. As a personal trait, belief in a just world (BJW) promotes volunteer effectiveness and willingness to help people (Correia et al., 2016), and might also have a potential effect on volunteers. Belief in a just world refers to the belief that the world is fair and that immoral people should be punished while virtuous people should be rewarded (Dalbert, 2009). Volunteers with low BJW believe that the world is unjust and lack a sense of justice. This may exacerbate the negative impact of incivility, further damaging motivation to volunteer, and increase volunteer burnout. Therefore, future research should explore the moderating roles of BJW on incivility and volunteer outcomes. Additionally, it has been found that rumination (brooding) negatively affects psychological disengagement (Saffrey and Ehrenberg, 2007), whereas contemplation does not (Weigelt et al., 2019). Future research could further compare the impacts of rumination and contemplation, and explore whether there are different levels of mediating effects between uncivil behavior and psychological disengagement.