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3/2021
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Original paper

Social dominance orientation predicts lower moral condemnation of causing harm to animals

Tomasz Jarmakowski-Kostrzanowski
1
,
Piotr Radkiewicz
2

1.
Institute of Psychology, Faculty of Philosophy and Social Sciences, Nicolaus Copernicus University, Toruń, Poland
2.
Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
Current Issues in Personality Psychology, 9(3), 229–236
Online publish date: 2021/05/03
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BACKGROUND

The acceptance of systematic exploitation of animals by humans – often referred to as “speciesism” (Dhont et al., 2020) – has become an important social and political issue. Thus, it is not surprising that in the last dec-ade, social psychologists have focused on psychological mechanisms and ideological foundations of differences in the way people perceive, value, and treat animals (e.g., Dhont & Hodson, 2014; Dhont et al., 2016, 2020). Dhont and colleagues (2016) postulated that the individual variation in social dominance orientation constitutes the ideological roots of the acceptance of a speciesist attitude. This article presents the results of two studies that tested this general hypothesis with a specific indicator of speciesism – moral judgment of harm done to animals.

IDEOLOGICAL ROOTS OF SPECIESISM

Dhont and colleagues (2016), based on the repeatedly observed correlations between prejudices against human outgroups and negative attitudes towards animals (Dhont et al., 2014; Hodson & Dhont, 2015), postulated that negative attitudes towards other human groups and animals shared the same ideological roots. Following their approach, we can use the theoretical models developed to explain the ideological foundations of prejudice against human outgroups when looking for an explanation for negative attitude towards animals.
We believe that the dual-process motivational (DPM) model developed by Duckitt and Sibley (2010) is the most suitable for this purpose. The authors identified two distinct ideological foundations of prejudices against human outgroups. They were conceptualized as social dominance orientation (SDO) and right-wing au-thoritarianism (RWA). These two sets of beliefs and attitudes have different psychological and social bases. SDO is defined as a general acceptance of the existing hierarchical social systems and inequality between groups (Hudson et al., 2019). It stems from the belief that the social world is a ruthlessly competitive jungle, expresses self-enhancement values (achievement, power, and hedonism) and the motivation to dominate other low-status individuals/groups (Duckitt & Sibley, 2010). RWA is defined as the covariation of conventionalism, authoritari-an submission, and authoritarian aggression (Kessler & Cohrs, 2008). It is rooted in perceiving the social world as dangerous and chaotic, based on a motivation to establish and maintain societal security, order, and stability in one’s group and related to the conservation values (security, conformity, and tradition; Duckitt & Sibley, 2010). Because SDO and RWA are based on different motivational goals and values, they were expected to have dif-ferent effects on prejudice. Correlational and longitudinal studies (Asbrock et al., 2010; Duckitt & Sibley, 2010) indicated that SDO, but not RWA, predicted the prejudice towards disadvantaged groups (e.g., “unemployed people”). In contrast, RWA, but not SDO, predicted a negative attitude to groups perceived as a threat to social order or ingroup norms/values (e.g., “people who disrupt safety and security in our society”).
When we apply this model to the human-animal relationship, the very first thing we notice is that ani-mals, in comparison to humans, have low status and are almost helpless and easy to exploit (Dhont et al., 2020). Since SDO was conceptualized as an expression of a desire to dominate and discriminate against low-status groups, we can expect that SDO will predict beliefs in human supremacy and acceptance of animal ex-ploitation. In turn, RWA stems from motivation to maintain ingroup cohesion and stability that animals do not threaten. However, the actions or ideologies that oppose animal exploitation (e.g., animals’ rights movements or vegetarianism/veganism) can be perceived as threats to ingroup tradition and identity. Based on these argu-ments, RWA was expected to be a predictor of acceptance of animal mistreatment and exploitation only when it was perceived as part of tradition or ingroup identity. These predictions, systematized as the Social Domi-nance Human-Animal Relations Model (SD-HARM; Dhont et al., 2016), have gained some empirical support. People high in SDO held greater human supremacy beliefs over animals, more often consumed meat, and had greater acceptance of animal exploitation (Bilewicz et al., 2011; Caviola et al., 2019; Dhont & Hodson, 2014; Dhont et al., 2014, 2016). At the same time, RWA predicted the level of vegetarianism threat (perceiving vege-tarianism as a threat to ingroup tradition and identity), but not human supremacy beliefs (Dhont & Hodson, 2014). Furthermore, the relationship between RWA and animal exploitation acceptance was fully mediated by the vegetarianism threat (Dhont & Hodson, 2014; Dhont et al., 2016).

THE CURRENT STUDIES

Studies supporting the SD-HARM model have usually been based on self-reported beliefs about what the hu-man-animal relationship should look like (e.g., “Much of scientific research done with animals is unnecessary and cruel” or “I think it is perfectly acceptable for cattle, chickens, and pigs to be raised for human consump-tion” from Dhont et al., 2016). Nevertheless, the negative attitude towards animals manifests also in the way people treat animals and how they morally judge harming them (Dhont et al., 2020). In fact, Caviola and col-laborators (2019, p. 2) defined speciesism as an “assignment of different inherent moral status based solely on an individual’s species membership”. To our knowledge, there is no study testing the SD-HARM model with spe-ciesism measured with moral judgments of harm done to animals by humans. The studies presented here aimed to fill this gap.
Based on the SD-HARM model, we predicted that people high in SDO would express lower moral con-demnation of harm done to animals by humans. At the same time, RWA, as a manifestation of a motivational goal to maintain ingroup norms and stability, should not be related to the level of moral condemnation of harm-ing animals unless it relates to tradition or ingroup identity.
The previous studies (Caviola et al., 2019; Dhont et al., 2014, 2016) suggested that the SDO-speciesism relationship was between 0.4 and 0.5 (Pearson’s coefficient r). We expected the relationship between ideological variable (SDO) and moral judgment to be weaker. Assuming the expected relationship between SDO and the moral condemnation of harming animals at the level 0.2 (Pearson’s coefficient r), we set our minimum sample size at n = 259 participants by power analysis.

STUDY 1

PARTICIPANTS AND PROCEDURE

Study 1 was conducted on a representative sample of 400 adult Poles (207 women). Their age ranged from 18 to 87, with average Mage = 47.44 (SDage = 15.90). The interviews were conducted in the respondents’ homes by trained interviewers using a computerized questionnaire format1.
Respondents completed a 12-item SDO scale (Siadnius & Pratto, 1999; e.g., “Some people are just more worthy than others”) with a 6-point scale from 1 (strongly disagree) to 6 (strongly agree) and a shortened 7-item version of the RWA scale2 (Funke, 2005; e.g., “Obedience and respect for authority are the most important virtues children should learn”) with a 7-point scale from 1 (strongly disagree) to 7 (strongly agree).
To measure the degree of moral condemnation of harm done to animals, we asked participants to rate the moral wrongness of behaviours described in four short scenarios. In all scenarios, animals are being harmed by humans. Responses for all moral vignettes were coded on a 5-point scale from 1 (not at all morally wrong) to 5 (extremely morally wrong). The full list of moral vignettes we used is provided in supplementary materials (Appendix B). The internal consistency measures (Cronbach’s α) for all scales are reported in Table 1.

RESULTS AND DISCUSSION

First, we analysed correlations between SDO, RWA, and moral condemnation (Table 1). As predicted, high level of SDO was related to lower moral condemnation of harm done to animals. However, contrary to our predic-tion, people high in RWA were slightly more prone to condemn harming animals.
Then we regressed the moral judgment of harming animals on SDO and RWA. The variance inflation factor (VIF) was 1.02. This suggests that multicollinearity was not a concern. As shown in Table 2, SDO predicts negatively and RWA positively the degree of moral condemnation of harming animals.
The results of study 1 provided initial support for the tested hypothesis. High SDO was associated with lesser moral condemnation of harming animals. However, the positive relation between RWA and moral con-demnation of harming animals was an unexpected result. The limitation of this study was the way we measured the moral condemnation of animal harm. Our scale consisted of only four scenarios, so it might have captured only a few forms of harming animals. Thus, we conducted study 2 using an expanded, more valid measure of moral judgment of harming animals to replicate the findings from study 1.

STUDY 2

PARTICIPANTS AND PROCEDURE

We recruited 324 participants (191 women) from the online research panel (Ariadna), which has 80 thousand registered panel members. The participants’ age ranged from 18 to 78, with an average Mage = 42.42 (SDage = 14.82).
Social dominance orientation was measured with the same 12-item scale as in study 1. To measure right-wing authoritarianism, we used a 12-item RWA scale by Funke (2005). This time we did not observe any prob-lems with recoded items, so we stuck to a 12-item version of the scale.
We used 13 vignettes to measure moral condemnation of harm done to animals. Relative to study 1, the scenarios described more forms of harming animals and involved more species (e.g., cows, pigs). Like study 1, all scenarios depicted humans’ harm to animals. Participants made the moral judgments of described behav-iours in the same manner as in study 1. The whole list of moral vignettes can be found in supplementary materi-als (Appendix B). The internal consistency measures (Cronbach’s α) for all scales are reported in Table 1.

RESULTS AND DISCUSSION

SDO was once again negatively correlated with the moral condemnation of harm done to animals, but RWA was not (Table 1). When we entered SDO and RWA into the regression model with moral judgment as a dependent variable (VIF = 1.08), SDO remained a significant predictor of moral condemnation of harming animals, whereas RWA was still not related to the judgment of such acts (Table 2).
Generally, study 2 replicated the results of study 1 concerning the relationship between SDO and moral judgment of harming animals. SDO negatively predicted the moral condemnation of humans harming animals, even after entering RWA into the model. This time the association between RWA and moral acceptance of an-imal harming was, as predicted, statistically insignificant and close to zero. This suggests that the positive rela-tion between RWA and moral condemnation observed in study 1 was a false positive.

GENERAL DISCUSSION

The results of the presented studies support our hypothesis derived from the SD-HARM model. Across two stud-ies, social dominance orientation predicted the moral judgment of harm done to animals. The more an individ-ual accepts beliefs conceptualized as SDO, the less she/he morally condemns harm done to animals by humans. In other words, the higher SDO is, the higher is the moral acceptance of harming animals. Such results are in line with the SD-HARM thesis that, as the expression of motivation to dominate other individuals or groups, SDO constitutes the ideological basis for generalized negative attitudes towards different low-status outgroups, includ-ing animals (Dhont et al., 2016, 2020). From this perspective, animal exploitation by humans is just a specific example of the human tendency to dominate and exploit weaker groups and individuals. On the other hand, the attitudinal cluster of conventionalism, submission, and authoritarian aggression, conceptualized as RWA, was not related to moral judgments about harming animals (study 2) or was even slightly positively associated with moral condemnation of such human behaviour (study 1). We expected such results because the scenarios we used depicted examples of harming animals that were not related to ingroup tradition or identity. And this is the condition under which RWA, as an expression of resistance to cultural change, leads to the acceptance of ani-mal exploitation (Dhont & Hodson, 2014; Dhont et al., 2020).
Why are people high in SDO more prone to morally accept harm done to animals? Our current study does not offer a direct answer to this question. Nevertheless, the literature on the nature of SDO and the human-animals relationship offers a reliable explanation. People high in SDO are motivated to maintain the existing hierarchy – animal exploitation by humans in this case. Thus, they tend to feel reduced empathy towards mem-bers of dominated outgroups in everyday situations (Hudson et al., 2019), which creates separation between social dominants and those who suffer under the current hierarchy (Nicol & Rounding, 2013) and facilitates hierarchy maintenance. Moral concern and moral judgments of harming others are largely based on empathy and compassion towards the victims (e.g., Graham et al., 2013; Haidt, 2003). We believe that reduced empathy towards animals enables social dominators to maintain human dominance and exploitation and results in lower moral condemnation of harming animals.
This research’s apparent limitation is its correlational design, which does not allow for direct inference of a causal relationship between the ideological beliefs and the moral judgments of harming animals. A longitudi-nal research design could provide a more straightforward answer regarding causal directions among the dis-cussed constructs. Likewise, it would be beneficial to test whether SDO predicts lower emphatic reactions to an-imal suffering as we observed it for the suffering of human outgroups’ members (Hudson et al., 2019).
In conclusion, our results present another argument in support of the SD-HARM model. SDO, but not RWA, predicts moral tolerance to harming animals. This suggests that social dominance orientation constitutes an ideological and moral foundation for dominating and exploiting members of outgroups, both humans and animals.

Endnotes

1 In line with the Center for Open Science’s recommendations for a more transparent science, we state that the measures reported here (both studies 1 and 2) are not the only variables measured in the database. The full list of measures can be found in supplementary materials (Appendix A).
2 We used a 12-item version of the RWA scale proposed by Funke. However, during the analysis, we found out that all five recoded items drastically reduced Cronbach’s α. Faced with such a problem, we decided to rely only on the remaining seven items (not recoded ones).
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Copyright: © 2021 Institute of Psychology, University of Gdansk This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
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