1. Introduction
In the age of globalization, people no longer belong to just one culture but are influenced by various cultures [
1]. The encounter between diverse cultures has resulted in significant advancements, including technological progress and the integration of the global economy [
2], but it has also generated conflict, hatred, and fear due to perceptions of foreign cultures, leading to various forms of discrimination based on race, gender, religion, and other factors [
3]. To address these issues, the United Nations adopted the Genocide Convention and the Convention on the Elimination of All Forms of Racial Discrimination, which prohibit discrimination based on race [
4]. In addition, the United States enacted the Civil Rights Act, and Australia enacted the Racial Hate Act, prohibiting discrimination based on race, color, religion, sex, and ethnic origin [
5]. In addition, the United Kingdom fined a spectator who mimicked gouging out an athlete’s eyes to humiliate a South-Korean-born athlete and banned them from attending a game [
6], and other countries around the world are making various efforts to prevent discrimination. These international examples underscore the importance of legal and social measures to promote equality and provide insights for improving policies and social attitudes in South Korea.
South Korea is also rapidly becoming a multicultural society due to the influx of foreign workers and international marriage migration, emphasizing the significance of understanding multiculturalism [
7]. However, South Korea is constantly discussing bills to prohibit discrimination against minority groups but has not yet enacted any legislation [
8]. This lack of legislation is because South Koreans are less likely to come into direct contact with foreigners or immigrants daily than residents of other countries with anti-discrimination laws, leading to a perceived lack of necessity for such laws [
9]. Although South Korea uses a positive image of multiculturalism, it treats foreigners as objects of assimilation or exclusion [
3]. This attitude led to the 2022 South Korean Consciousness and Values Survey, where 67.4% of respondents responded that there is still prejudice against foreigners based on their race and country [
10]. Discrimination against foreign migrants, lack of preparation, and experience in multicultural societies can hinder migrants’ adaptation and integration into the host social environment, leading to social conflict between migrants and the host population [
11]. Because of prejudices against migrants, the migrants perceive South Korea as a society with high levels of discrimination and barriers to integration [
12].
Discrimination and prejudice are individual expressions of intergroup conflicts [
13,
14]. From the perspective of intergroup conflict, mainstream society perceives migrants as an “outgroup” and, therefore, subject to conflict. Those high in social dominance orientation (SDO) are more likely to perceive migrants as outgroups [
15]. SDO strongly predicts intergroup attitudes and behaviors and social and political attitudes. Pratto and colleagues [
16] defined SOD as “a general attitudinal orientation toward intergroup relations that reflects the degree to which one prefers to view intergroup relations as egalitarian or hierarchical”. In other words, SDO is the tendency to believe that one’s group is superior to others with a desire to dominate others. SDO is an individual-level psychological component of social dominance theory [
17], which posits that our social world organizes around a group-based hierarchy of dominant and subordinate groups.
Social groups use various social variables to organize, such as culture and nationality. SDOs are susceptible to socialization and prolonged exposure to certain social environments [
18]. For example, individuals exhibit higher levels of SDO when socialized in contexts characterized by high levels of inequality and competition for power and status [
19]. South Korean studies that examined the relationship between SDO and multicultural acceptance [
15,
20] found an association between a stronger SDO and lower multicultural acceptance. Research on social dominance orientation and xenophobia has shown that people with stronger social dominance orientation have more aggressive and hostile attitudes toward illegal immigrants [
21]. Based on these findings, we can predict that people with high social dominance orientation tend to have conservative traits and are more likely to exclude or ostracize rather than embrace multiculturalism and other races. In contrast, a more progressive orientation correlates with more positive attitudes toward change in a multicultural society and acceptance of multicultural members.
As a relatively stable individual difference, SDO strongly predicts stereotyping, discrimination, and prejudice [
17,
18,
22,
23]. SDO is associated with a greater tendency to endorse and maintain social hierarchies and inequalities, which involves less flexibility in altering one’s stereotypes [
24]. High-SDO individuals are typically resistant to changing their ingrained stereotypes and are more likely to exhibit prejudice toward low-status groups [
25]. Conversely, there is a link between lower levels of SDO and greater cognitive flexibility, which includes a higher propensity for empathy and cooperation with diverse groups [
15,
26]. Research indicates an inverse relationship between cognitive flexibility, the ability to adapt one’s thinking and behavior to new or changing situations [
27,
28], and SDO’s rigidity. Specifically, individuals with high SDO often show lower cognitive flexibility, contributing to their resistance to altering negative stereotypes [
25].
In contrast, individuals with lower SDO levels, who are generally more open and less rigid in their thinking, exhibit greater cognitive flexibility, which enhances their ability to adopt more positive attitudes toward minority groups and adjust to diverse social contexts [
29,
30]. This relationship suggests that increasing cognitive flexibility may mitigate some of the negative impacts of high SDO, potentially leading to more accepting attitudes toward outgroups and reduced prejudice [
29,
31]. Therefore, fostering cognitive flexibility could effectively counter the biases associated with high SDO and promote more inclusive and adaptable social attitudes.
This attitude of helping or supporting others to coexist as equals within their culture without prejudice against the culture to which they belong is called multicultural acceptance [
32]. Multicultural acceptance is an attitude that recognizes the transition to a multicultural society as positive and supports the social value of coexisting with different ethnic and racial groups [
33,
34]. In South Korea, the Ministry of Gender Equality and Family conducts a multicultural acceptance survey every three years to raise public awareness of multiculturalism and determine multicultural education’s direction. According to the findings of the 2021 National Multicultural Acceptance Survey [
35], the level of multicultural acceptance varies by age. The survey revealed that the younger the adolescents and adults, the higher their level of multicultural acceptance. In domestic studies, multicultural receptivity is “multicultural acceptance”, but there is limited research on this concept in international contexts.
Most studies predominantly examine multicultural politics from a white perspective [
36], focusing on concepts like “multicultural attitudes” or “attitudes toward multiculturalism” [
37,
38]. In the case of South Korea, despite the increasing rate of foreign immigration, the country remains predominantly mono-ethnic, leading to prejudices and discrimination against certain nationalities or races [
39]. The many roles that stereotype-changing tendencies and cognitive flexibility play are critical to understand in order to reduce conflicts throughout the shift to a multicultural society. External factors including social conventions, education, the media, and one’s group membership might have an impact on a person’s tendency to change stereotypes [
40]. These tendencies refer to the propensity of individuals to change their stereotypes in response to changing social expectations or new information. On the other hand, cognitive flexibility refers to an individual’s inherent abilities and dispositions, including brain function, cognitive skills, and personal experiences [
41]. Cognitive flexibility is the ability to adapt one’s thinking and behavior in response to new or unexpected conditions, independent of external influences [
42]. Understanding the independent relationship between these two constructs is essential for assessing how interactions with SDO might affect intercultural acceptance. While tendencies to change stereotypes can shift based on external inputs and social pressures, cognitive flexibility is a more intrinsic trait that influences how individuals process and integrate new cultural information [
43]. Thus, this study focuses on the tendency to change stereotypes and cognitive flexibility as mediators of multicultural acceptance. We expect the results to affect future multicultural policy and multicultural education.
Figure 1 illustrates this study’s framework.
4. Discussion
This study examined the mediating effects of stereotype modification tendency and cognitive flexibility on the relationship between social dominance orientation (SDO) and multicultural acceptance. Results indicated that stereotype modification tendency partially mediated the relationship between SDO and multicultural acceptance, but cognitive flexibility did not.
SDO is an individual’s attitude toward discrimination and inequality in social groups, and individuals with a strong SDO may be more likely to hold group prejudicial ideologies or to hierarchize groups [
16]. These tendencies may manifest as racism and nationalism and may favor the dominance of certain groups over other minority groups [
51]. A review of the literature on dominance orientation reveals several studies that focus on social minority or gender effects, such as xenophobia [
52], sexual minority and stigma associations [
53], and political orientation and sexism [
54]. The literature suggests that SDO affects attitudes toward other groups in the relationship between mainstream groups and minority groups, such as multicultural and lesbian, gay, bisexual, transgender, and queer (LGBTQ) groups.
Social identity theory [
14,
55] posits that individuals differentiate between “us” and “them” based on the relationship of the groups to issues of discrimination and exclusion when individuals seek to enhance their self-esteem by attributing positive qualities to their group. In this context, high social dominance orientation is discriminatory behavior toward other groups (multicultural, diverse minority groups) aimed at perceiving one’s ingroup as superior or better. This study found that individuals with higher SDO tended to have lower levels of multicultural acceptance. Given these findings, it is likely that strong discriminatory or exclusionary attitudes toward other groups are associated with negative attitudes toward multiculturalism and low acceptance.
In the past, multicultural policies emphasized the adaptation of migrants by categorizing them into multiculturalism, which recognizes different cultures, and assimilationism, integrating them into the mainstream culture [
56]. Since the 2000s, most countries have adopted interculturalism as a model for the social integration of migrants. This approach emphasizes migrants’ adaptation, interaction, and engagement with the wider society’s culture, including the mainstream culture [
57]. This interculturalism is possible when people do not have discriminatory attitudes such as stereotypes and prejudices [
35], and reducing stereotypes and prejudices promotes an open and flexible attitude toward other cultures. Previous research has shown that individuals high in SDO are more likely to be prejudiced against lower-status groups. In contrast, individuals low in SDO are more likely to cooperate with other groups [
15,
26]. Studies have also reported that higher levels of openness and proactivity are associated with higher intercultural acceptance [
58]. However, scholars have shown that stronger group identification with ethnicity or belonging negatively impacts intercultural acceptance [
59,
60].
Research indicates that SDO reflects prejudice against socially disadvantaged, minority, and low-status groups more than prejudice against competing groups [
61]. In the case of South Korea, it may also influence people to hold negative attitudes toward minority groups, such as the belief that foreign workers take jobs from South Koreans [
62]. These stereotypes and prejudices can hinder South Korea’s transformation into a multicultural society and its potential to become more inclusive. Countries like the United States, Canada, and Australia have laws prohibiting discrimination and prejudice and impose sanctions in cases of discrimination based on race, culture, and other factors. In South Korea, however, there is no legal basis for punishing discrimination based on race, culture, etc. Therefore, to increase multicultural acceptance, it is necessary to find ways to reduce prejudices and stereotypes rooted in social dominance orientation. It is important to promote awareness and education that challenge existing biases and emphasize the benefits of diversity. Since greater contact and experience with multicultural settings can help build a more inclusive and open society [
63,
64,
65], it is essential to develop and enhance systems that expand multicultural experiences. However, research suggests that even with extensive multicultural experiences, negative encounters can increase prejudice [
66]. Therefore, it is crucial to establish solutions that address both the quantity and quality of positive multicultural experiences.
Flexibility refers to coping with various situations [
67], while cognitive flexibility pertains to applying acquired knowledge effectively in diverse contexts. Cognitive flexibility helps individuals adapt their thoughts and behaviors or consider alternative perspectives based on different situations [
30]. In addition, cognitively flexible individuals demonstrate adaptability to changing environments and possess the adaptive ability to cope effectively in relationships with others [
68]. Therefore, individuals with higher cognitive flexibility have fewer prejudices and are more receptive to different cultures. This study found a significant relationship between cognitive flexibility and multicultural acceptance. In addition, numerous studies have validated the relationship between cognitive flexibility and attitudes toward others [
29,
30].
However, the mediation of cognitive flexibility on the relationship between SDO and multicultural acceptance was not significant in this study. This finding contradicts our hypothesis that people high in SDO would show reduced cognitive flexibility because they have a closed mindset [
69] and that cognitive flexibility would mediate and influence intercultural acceptance. We believe that these findings open several possibilities. First, SDO and cognitive flexibility may not always be inversely related. Palese and Schmid Mast [
70] reported that individuals high in SDO have higher levels of behavioral flexibility, which is the ability to flexibly adapt one’s behavior to the individual situation and the needs of others. Martin and Heineber [
71] also found that when leaders high in SDO are also high in empathy, transformational leadership—where leaders use flexible thinking to encourage colleagues to cooperate and change—is more likely than authoritarian leadership. These findings suggest that various factors influence SDO and cognitive flexibility, including an individual’s situation, environment, and personality. Therefore, it is necessary to clarify the relationship between SDO and cognitive flexibility by considering these factors.
Next, South Korea adheres to mononationalism, rooted in a strong sense of nationalism and collective identity [
72]. Currently, South Korea is experiencing a shift toward a multicultural society, with the number of multicultural households increasing from 299,241 in 2015 to 415,584 in 2023 [
73] and resident foreigners accounting for 4.89% of the total population [
74]. From the perspective of previous research [
75,
76], which suggests that increased multicultural experiences affect SDO and cognitive flexibility, leading to greater multicultural acceptance, South Korea should theoretically exhibit lower SDO and higher cognitive flexibility, resulting in increased multicultural acceptance. However, these results may not hold in every case, considering that South Korea’s strong nationalist ideology might lead to high SDO and cognitive flexibility due to the fusion of nationalist ideology and multicultural experiences. This situation suggests that even multicultural contact experiences may not positively affect multicultural acceptance amid strong mononationalist beliefs. Therefore, although multicultural contact experiences are important, we must also consider South Korean nationalism. To increase multicultural acceptance, the government, citizens, and immigrants should collaborate to ensure that South Korean nationalism and multicultural society coexist and encourage positive multicultural experiences to raise awareness.
Because we conducted this study only among South Koreans, the results may reflect the cultural characteristics of South Korea. Therefore, it would be helpful to generalize the results of this study by conducting a follow-up study with different ethnic groups. In addition, it is necessary to redefine the causal relationship between variables through a thorough literature review to clarify the relationship between SDO and multicultural acceptance. We recommend conducting more in-depth studies to examine the mediating effects of the SDO subscales, SDO-D and SDO-E, on the relationship between SDO and multicultural acceptance. Finally, it is important to recognize that the tendency to change stereotypes and cognitive flexibility operate through different mechanisms. While cognitive flexibility is determined by an individual’s intrinsic abilities and tendencies, such as brain function, cognition, and experience, stereotypes are highly influenced by external variables such as social conventions, education, media, and an individual’s group [
40,
41]. According to Bedge, preconceptions can persist even in those with excellent cognitive flexibility [
77]. This study indicates that stereotypes, rather than an individual’s internal cognitive abilities, have a greater influence on multicultural acceptance. Specifically, stereotype change was found to be a significant mediator of the relationship between SDO and multicultural acceptance, while cognitive flexibility was found to be an insignificant mediator. Therefore, multicultural policies, initiatives, etc. that accurately recognize the social and cultural trends and attitudes of the nation should be supplied in order to improve intercultural acceptance.
The present study is significant because it examines the mediating effects of stereotype-changing tendencies and cognitive flexibility on the relationship between SDO and multicultural acceptance. However, there are some limitations. Future research should extend to general populations of different ethnicities and countries. We also need richer methodologies that reflect the diversity of characteristics of individuals’ SDOs. In addition, we suggest that follow-up research include measures that reflect behavioral changes toward outgroups.