Tom Costello, PhD
Tom Costello, PhD
I'm Thomas Costello, a research psychologist and postdoctoral fellow at MIT.
Human beings, as a rule, believe complex, contradictory things about the world, love their group (and hate competing groups), and are often capable of committing reprehensible acts of violence and coercion in service of these beliefs and group allegiances. Humans also differ heterogeneously relative to one another along virtually every conceivable axis. In modernity, as physical distances have become easily surmountable, and information ecosystems have roiled, growing more complex and inflammatory with each technological milestone, some of humanity’s starkest coalitional borders have come to be drawn based on ideologies and beliefs. Yet the heterogeneity that unites us transcends these group borders. This is the key insight of my research program, which peers through the fast-burning, animating political conflicts of our times to the basic features of human psychology that lie, tantalizingly bare, beneath. I study political beliefs as a causal nexus between personality, groupiness, and society, leveraging psychological individual differences to understand why some people endorse extremism and reject liberal democracy while others contentedly “agree to disagree”. My work has drilled down on the psychological nature of authoritarianism–how it persists and morphs across cultural contexts–as well as on the structural complexities of political belief systems (including their cognitive causes and consequences). Focusing on understanding heterogeneity in these processes, I leverage cutting-edge statistical methods and models, as well as computational and traditional “laboratory” methods, while seeking optima between exploratory and confirmatory work.
In the last few years, my scholarly work has been featured in the Journal of Personality and Social Psychology, Trends in Cognitive Sciences, Psychological Bulletin, and Nature Reviews Psychology and repeatedly covered in media outlets such as The Atlantic, the New York Times, and Vice. I received my Ph.D. in Psychology from Emory University in 2022. On this site, you'll find more information about me. Thanks for visiting!
FEATURED PUBLICATIONS
Bowes, S.M., Costello, T.H., Tasimi, A (2023). The conspiratorial mind: A meta-analytic review of motivational and personological correlates. Psychological Bulletin. [Preprint].
Costello, T.H.,Zmigrod, L., Tasimi, A. (2023). Thinking outside the ballot box. Trends in Cognitive Sciences. Advance online publication. [LINK]
Osborne, D., Costello, T.H., Duckitt, J, Sibley, C. (2023). The causes and societal consequences of authoritarianism. Nature Reviews Psychology. [LINK]
Costello, T.H., Bowes, S.M., Malka, A., Baldwin, M., Tasimi, A. (2022). Revisiting the rigidity-of-the-right hypothesis: A meta-analytic review. Journal of Personality and Social Psychology. Advance online publication. [PDF] [Preprint]
Costello, T.H., Bowes, S.M. (2022). Absolute certainty and political ideology: A systematic test of curvilinearity. Social Psychological and Personality Science. [e-copy] [Preprint]
Costello, T.H., Bowes, S.M., Stevens, S.T., Waldman, I.W., Tasimi, A., & Lilienfeld, S.O. (2021). Clarifying the structure and nature of left-wing authoritarianism. Journal of Personality and Social Psychology. Advance online publication. [PDF] [Preprint] [OSF]
Costello, T.H., & Lilienfeld, S.O. (2020). Social and economic political ideology consistently operate as mutual suppressors: Implications for personality, social, and political psychology. Social Psychological and Personality Science, 12, 1425-1436. [PDF] [OSF]
Costello, T.H., Bowes, S.M., Lilienfeld, S.O. (2020). “Escape from Freedom”: Authoritarianism-related traits, political ideology, personality, and belief in free will/determinism. Journal of Research in Personality, 86, 1-16. [PDF]
Costello, T.H., Watts, A.L., Murphy, B.A., Lilienfeld, S.O. (2020). Extending the nomological network of interpersonal sexual objectification to psychopathic and allied traits. Personality Disorders: Theory, Research, and Treatment, 11, 237-248. [PDF]
Costello, T.H., Smith, S.F., Bowes, S., Riley, S., Berns, G., Lilienfeld, S.O. (2019). Risky business: Psychopathy, framing effects, and financial outcomes. Journal of Research in Personality, 78, 125-132. [PDF]
Data Visualization
Media Coverage
How to tell if you're a political extremist. Markham Heid. Medium (272,000 followers). November 30th, 2022.
Protecting yourself from COVID isn't a sign of mental illness. Shayla Love. Vice. January 20th, 2022.
Left-wing authoritarianism is real and needs to be taken seriously. Emma Young. British Psychological Society (Research Digest). October 1st, 2021.
How the experts overlooked authoritarianism on the left. Sally Satel. The Atlantic. September 26th, 2021.
Large study indicates left-wing authoritarianism exists and is a key predictor of psychological and behavioral outcomes. Eric Dolan. PsyPost. June 30th, 2021.
U.S. conservatives are uniquely inclined toward right-wing authoritarianism compared to Western peers. Cameron Easley. Morning Consult. June 28th, 2021.
A theory about conspiracy theories. Benedict Carey. New York Times. September 28th, 2020.
Culture beat: Left-wing authoritarians are real. Post Editorial Board. New York Post. May 29th, 2020.
Is there such a thing as a left-wing authoritarian? Andre Spicer. New Statesman. May 26th, 2020.
New study finds authoritarian personality traits are associated with belief in determinism. Eric Dolan. PsyPost. May 18th, 2020.
Opening minds. National Affairs. Kevin Lewis. May 15th, 2020.
Researchers identify key personality correlates of interpersonal sexual objectification. James Ives. The Medical News. January 27th, 2020.
How personality predicts seeing others as sex objects. MedicalXpress. January 27th, 2020.
Consulting: Cognitive Science, Statistics, and Data Visualization
I am available to help solve your psychology-knowledge, statistical-, data visualization-, and scale construction-related problems. For more information, contact me at thcostello1@gmail.com.