Homo Politicus Was Born This Way: How Understanding the Biology of Political Belief Promotes Depolarization. Alexander Severson, Boise State University. https://static1.squarespace.com/static/5aaee6274eddec9e7a191db5/t/5db34cf7896fba3217a91b4b/1572031736718/Severson+%282019%29.pdf
Abstract: Most individuals perceive ideological beliefs as being freely chosen. Recent research in genopolitics and neuroscience, however, suggests that this conviction is partially unwarranted given that biological and genetic factors explain more variance in political attitudes than choice and environmental factors. Thus, it is worth exploring whether exposure to this research on the biological and genetic basis of political attitudes might influence levels of affective polarization because such exposure might reduce the perceived moral culpability of partisan outgroups
for the endorsement of oppositional beliefs. In this paper, I employ an online survey experiment on Amazon Mechanical Turk (N = 487) to assess whether exposure to research on the genetic and biological etiology of political attitudes influences warmth toward partisan outgroups and preferences over political compromise. I present evidence that nontrivial numbers of participants in the treatment group reject the underlying science and do not update their genetic trait attributions for political attitudes. However, I also find that when the treatment is successful at increasing biological and genetic trait attributions, exposure to this research depolarizes strong-identifying partisans. Moreover, as partisans increasingly endorse biological and genetic trait attributions for political attitudes, they increasingly hold favorable attitudes toward political outgroups. These patterns suggest a potentially profitable inroad for political polarization interventions going forward.
Keywords: polarization; biopolitics; ideology; trait attributions; survey experiment
Exerpts from the introduction:
On June 1, 2019, Democratic primary candidate Andrew Yang tweeted, “According to
twins [sic] studies between one-third and one-half of political alignment is linked to genetics;
that is most of us are born somewhat wired to be liberal or conservative. If this is the case
we need to build bridges as much as possible. It’s not just info or culture” (Yang 2019).
Yang’s tweet is notable as it suggests that one potential strategy to reduce growing partisan
antipathy (Iyengar et al., 2012; Kalmoe and Mason 2019) is to raise public awareness of recent
research in political science which demonstrates that a sizable proportion of individual-level
variation in political attitudes can be explained by biological and genetic factors (Dawes and
Fowler 2008; Hatemi and McDermott 2012). The unstated assumption of this argument is
that it is difficult to hold members of political outgroups responsible for the endorsement
of oppositional political beliefs when variation in such beliefs is best predicted by ascriptive
factors over which individuals have no control. Thus, in this view, awareness of the biological
substrates of political attitudes and of the minimized role of personal choice in generating
those attitudes should increase political tolerance toward partisan outgroups as “born that
way”-style explanations partially absolve members of partisan outgroups of the perceived
evilness of their belief systems (Snead 2011; Schneider, Smith, and Hibbing 2018).
However, it is also imaginable that exposure to information on the biological and genetic sources of political attitudes could further animate partisan tensions. Instead of this
information being used to exculpate members of political outgroups of the perceived offense
of their beliefs, exposure to this information might cause individuals to view the partisan
gulf as elementally unbridgeable. In this perspective, exposure to the degree of determinism
implied by biological models of political attitudes could reduce perceptions that members of
political outgroups are capable of opinion-change. Thus, if the political attitudes of partisan outgroups are viewed as increasingly resistant to change given the biological forces which
underlie them, then it follows that partisans might increasingly disengage from meaningful
social interactions with those across the aisle and come to devalue having conversations with
their outpartisan counterparts. Moreover, belief in the relative fixity of the political attitudes
of partisan outgroups could potentially translate into the adoption of more exaggerated and
essentialist views of the other (Haslam and Whelan 2008).
Conclusion
To summarize, in this paper, I used an online survey experiment to assess whether
exposure to recent scientific findings on the neurobiology and heritability of political belief
influenced affective polarization and preferences over compromise. Theoretically, a priori, it
was unclear whether such a strategy would increase or decrease levels of affective partisan
polarization. On the one hand, a subset of researchers in philosophy and moral psychology
have found that individuals tend to be more forgiving when they perceive that individuals
have less control over their decisions (Young 2009; Baumeister and Brewer 2012; Shariff et al.
2012). Conversely, other researchers in social psychology have found that individuals become
more antisocial when their belief in free-will and choice is undermined (Vohs and Schooler
2008; Baumeister, Masicampo, and DeWall 2009; MacKenzie, Vohs, and Baumeister 2014).
Thus, one of the goals of the present research was to provide a preliminary test of these two
divergent theoretical predictions to assess which, if either, held in the context of the debate
about the degree of determinism of political belief.
In this paper, I present evidence, consistent with recent work by Schneider, Smith, and
Hibbing (2018) and Willoughby et al. (2019), that most people view ideological beliefs and
partisanship as being largely determined by personal choice and to a lesser degree by socialization. Individuals are either unaware of or are psychologically-resistant to the idea that political
beliefs are even partially the byproduct of biological and genetic processes. Further, although
the experimental manipulation increased beliefs that ideology is biologically-determined, the
manipulation was not uniformly effective. However, among those who responded to the manipulation, affective polarization decreased in a rather pronounced fashion, particularly among
strongly-identifying partisans. Moreover, across both conditions, increased endorsement of biological and trait attributions correlated positively with the endorsement of warmer attitudes
toward political outgroups. Finally, my study demonstrated that exposure to such a frame
does not appreciably shift attitudes toward political compromise or whether participants felt
it was important to have ideologically-diverse discussant partners.
However, it is worth noting a few limitations to the present paper which suggest promising avenues for future research. First, the current design cannot rule out the possibility that
any narrative which outsources responsibility for political beliefs to an external locus may
promote depolarization. To this end, future studies should contrast the strength of depolarization effects between frames which emphasize the underlying biological science of ideology
against frames which emphasize the role of socialization factors, frames which would similarly
imply that individuals are not fully-responsible for their own political beliefs. Secondly, in
the present study, I did not directly measure perceptions of the moral culpability or blameworthiness of political outgroups. Future work should investigate whether exposure to frames
which minimize the role of personal choice in the construction of political belief, in turn, alter
perceptions of the moral responsibility of endorsing specific political beliefs. Relatedly, future
work might also explore whether different components of political beliefs (e.g., support for
policies; support for candidates) are perceived as more intentional than others. Third, the
present study made use of a convenience sample conducted on Amazon Mechanical Turk.
While previous work suggests that the use of online convenience samples can recover valid
treatment effect estimates (Mullinix et al. 2015; Coppock 2019), future work could replicate the present findings using a more nationally-representative sample. Finally, although my
results suggest that depolarization interventions which exclusively emphasize the biological
science of ideological belief alone are not likely to engender sweeping depolarizing effects, they
do suggest, perhaps hopefully, that exposure to this type of research neither increases the
partisan affective gulf nor harms the likelihood of cross-party interactions. Thus, concerns
about the potential negative or antisocial effects of encountering such frames, at least in the
context of political belief, may be overstated.
Given that most of us reflexively think that we choose and are responsible for our own
political beliefs, it can be admittedly troubling to confront the possibility that we may not
exercise as much control over these beliefs as our intuition seems to suggest. We proudly
weaponize bumper stickers and traffic in taunt-infused comment-thread witticisms in the war
against the political “other”, all in part because we believe that the other side chooses to
believe what they believe freely and unencumbered. The root of our frustrations, of increased
political violence and partisan discrimination (Lelkes and Westwood 2017), seems to hinge on
this often unquestioned assumption that we exercise agency over our belief systems. However, the emergent neurobiological and genetic science of political belief suggests that this
assumption is misguided and in lieu of accented partisan violence and taunting, potentially
dangerous. It seems odd, albeit perhaps quintessentially human, to believe that our political
beliefs are somehow completely separable from the biological and genetic programming which
circumscribes all of our cognitions. However, in disavowing this belief and accepting that our
own ideologies are partially the byproduct of biological and genetic processes over which we
have no control, we may end up promoting a more tolerant and kinder civil society.
Luck Beliefs and Happiness
Our finding that Belief in Luck is broadly negatively associated with happiness is consonant with Maltby et al.’s (2008) suggestion that Belief in Luck is perhaps a maladaptive trait. Consequently, any notion of happy-go-lucky individuals cheerfully trusting to luck would seem to be inaccurate, at least if those individuals believe in luck as a non-random, deterministic and external phenomenon. Indeed, insofar as such individuals may irrationally trust to luck as a deterministic phenomenon, they would seem to do so unhappily not happily.
However, our finding that Belief in Personal Luckiness is positively associated with happiness tends to suggest the happy may indeed go lucky, in the sense that happiness and believing oneself to be lucky are associated. Of course, the relatively large size of associations we find here suggests that Belief in Personal Luckiness might in fact be a facet of an overall happiness construct. A possible implication of this is that Belief in Personal Luckiness’ association with any particular happiness measure could, perhaps, be fully accounted for by controlling other happiness measures. To investigate this possibility, we separately regressed each of the four measures of happiness on Belief in Personal Luckiness while simultaneously controlling for the three remaining happiness measures in each respective case, to see if Belief in Personal Luckiness maintained a significant beta. Doing so we found Belief in Personal Luckiness is not associated with either Positive or Negative Affect. However, Belief in Personal Luckiness is still significantly associated with Happiness (β = .09, p < .01; ΔR2 = .05, p < .01), and Optimism (β = .09, p < .01; ΔR2 = .06, p < .01). This would seem to support, partly at least, that Belief in Personal Luckiness may represent either a facet of happiness or a discrete personality trait positively associated with happiness.
Luck Beliefs, Five-Factor Model and Happiness
Neither Belief in Luck nor Belief in Personal Luckiness appear from our findings to be mediators of the association between the five-factor model of personality and happiness.
Indeed, our analyses, in part, suggest the contrary: that Neuroticism fully mediates Belief in Luck’s association with happiness. This does not imply that Belief in Luck necessarily ‘causes’ Neuroticism, but it is reasonable to speculate that the underlying irrationality and the lack of both agency and self-determination that would seem to underpin Belief in Luck also to some extent underpin or are facets of Neuroticism. This would be consonant with previous research demonstrating significant relationships between Neuroticism and locus of control (Judge et al. 2002; Morelli et al. 1979), self-determination (Elliot and Sheldon 1997; Elliot et al. 1997), and irrational beliefs (Davies 2006; Sava 2009).
We do not find evidence for any component of the five-factor personality model mediating Belief in Personal Luckiness’ association with happiness, nor do we find evidence of any pronounced confounding effects between Belief in Personal Luckiness and the five-factor model and their respective associations with happiness. Hence, considering Belief in Personal Luckiness to be a trait discrete from fundamental personality models would on the basis of our findings not seem unreasonable. Nor would it seem unreasonable to suggest that Belief in Personal Luckiness might potentially be either a facet of happiness or a personality trait discrete from but associated with not just the five-factor model but also happiness.
Our conclusions here certainly seem to apply with greatest saliency to the most direct measure of trait happiness we used, Lyubomirsky and Lepper’s (1999) Subjective Happiness Scale, and to a lesser extent to Optimism, a measure closely allied with happiness (Brebner et al. 1995; Chaplin et al. 2010; Furnham and Cheng 2000; Salary and Shaieri 2013). However, while the pattern of relationships is broadly similar for both Positive Affect and Negative Affect, the effect sizes are smaller and either less significant or insignificant. This would suggest that, while both Positive Affect and Negative Affect are often used as proxies for happiness, they might perhaps best be regarded as constructs related to, rather than directly synonyms of, happiness.
Limitations and Further Research
While our research sheds new empirical light on the relationships between luck beliefs, happiness and the five-factor personality model, a number of limitations need to be kept in mind. As with any findings based on cross-sectional data, interpreting our findings in terms of directions of causality would be imprudent and, of course, constrained by the assumption of our research that happiness, luck beliefs, and the five-factor model are all personality traits rather than individual difference states. Personality traits may, of course, be associated in systematic patterns, but the very notion of traits being essentially innate and non-manipulable, unlike individual difference states, intrinsically excludes the possibility that one might be ‘caused’ by another. To take the five-factor model as an example, its five personality traits have a well-established systematic pattern of associations, but it would be implausible to suggest any of the five in any mechanistic sense causes another: they exist together discretely, with none generally argued to be a facet or sub-component or effect of the other. This said, an area for further research might be to examine the effects of trait luck beliefs on state affect that varies temporally and is manipulable, so hence susceptible to theorization and testing using either longitudinal or experimental data.
A further limitation to our study relates to necessary caution in generalizing its findings in view of the deliberately homogeneous population we used. Further research to replicate our findings amongst heterogeneous populations in terms of nationality, occupation, and socio-economic status would be useful as it has been shown across multiple domains that psychological characteristics and their relationships may vary accordingly (Becker et al. 2012; Boyce and Wood 2011; John and Thomsen 2014; Rawwas 2000; Thompson and Phua 2005a, 2005b; Winkelmann and Winkelmann 2008). Furthermore, although each of the happiness and luck measures we employ have been individually validated across internationally diverse samples including Hong Kong Chinese, underlying conceptions of both are known to exhibit nuanced cultural differences (Lu and Gilmour 2004; Lu and Shih 1997; Raphals 2003; Sommer 2007), which conceivably could modify measured associations between them.
We also note that our study, in common with most research, has limitations due to the limited selection of measures with which we operationalized our investigation. We selected just four measures commonly used in studies of trait happiness, but several others exist, although some, like the Satisfaction with Life Scale (Diener et al. 1985) can arguably be regarded as assessing state rather than trait happiness. We also selected a five-factor model measure that, while not as potentially prone to poor measurement validity as extremely short measures, is sufficiently brief as to exclude examination of possible relationships of each of the big-five elements on a sub-component basis. Certainly given our findings in relation to Neuroticism, further research using multi-component measures of this dimension of the five-factor model might prove illuminating.
In addition, research examining possible mediation and moderation effects of cognate psychology constructs such as, for example, locus of control (Pannells and Claxton 2008; Verme 2009), illusion of control (Larson 2008; Erez et al. 1995), and gratitude (Sun and Kong 2013; Toussaint and Friedman 2009) might help further the understanding of relationships between luck beliefs, happiness, and the five-factor model.