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  1. The psychological characteristics of conspiracy theorists.

    Article • April 2023, Center for Open Science

    Thomas Costello

  2. Beyond left and right: A better model of political attitudes

    Article • Trends in Cognitive Sciences, April 2023, Elsevier

    Thomas Costello

  3. Which Americans are authoritarian and against democracy?

    Article • American Politics Research, February 2023, SAGE Publications

    Thomas Costello

  4. “Feeling Powerful” versus “Desiring Power”: A pervasive and problematic conflation in personality assessment?

    Article • Journal of Research in Personality, December 2022, Elsevier

    Thomas Costello

  5. On the Association between Grants and Scholarly Achievement among the World’s Most Eminent Psychologists

    Article • Current Psychology, November 2022, Springer Science + Business Media

    Thomas Costello

  6. How political conservatism relates to different types of rigidity: A comprehensive review

    Article • Journal of Personality and Social Psychology, November 2022, American Psychological Association (APA)

    Thomas Costello

  7. Measuring left-wing authoritarianism with machine learning

    Article • Journal of Personality Assessment, June 2022, Taylor & Francis

    Thomas Costello

  8. Problems with the status-quo in political psychology.

    Article • Psychological Inquiry, April 2022, Taylor & Francis

    Thomas Costello

  9. The road less traveled: Understanding adversaries is hard but smarter than ignoring them.

    Article • Journal of Applied Research in Memory and Cognition, March 2022, American Psychological Association (APA)

    Cory Clark, Thomas Costello

  10. Keep your enemies close: Adversarial collaborations will improve behavioral science.

    Article • Journal of Applied Research in Memory and Cognition, March 2022, American Psychological Association (APA)

    Cory Clark, Thomas Costello

  11. Political extremists are overconfident about their beliefs

    Article • Social Psychological and Personality Science, February 2022, SAGE Publications

    Thomas Costello

  12. Left-wing authoritarianism: What is it and why does it matter?

    Article • Journal of Personality and Social Psychology, January 2022, American Psychological Association (APA)

    Thomas Costello, Shauna Bowes

  13. Spanish Adaptation of the Left-Wing Authoritarianism Index

    Article • Journal of Personality Assessment, October 2021, Taylor & Francis

    Thomas Costello

  14. Absolute Certainty and Political Ideology: A Systematic Test of Curvilinearity

    Article • September 2021, Center for Open Science

    Thomas Costello

  15. Shoring up the shaky psychological foundations of a micro-economic model of ideology: Adversarial collaboration solutions

    Article • June 2021, Center for Open Science

    Thomas Costello

  16. Development and Initial Validation of Two Brief Measures of Left-wing Authoritarianism: A Machine Learning Approach

    Article • June 2021, Center for Open Science

    Thomas Costello

  17. Stepping Outside the Echo Chamber: Is Intellectual Humility Associated With Less Political Myside Bias?

    Article • Personality and Social Psychology Bulletin, March 2021, SAGE Publications

    Thomas Costello

  18. Stepping Outside the Echo Chamber: Is Intellectual Humility Associated with Less Political Myside Bias?

    Article • February 2021, Center for Open Science

    Thomas Costello

  19. The hidden effects of economic and social political ideology on personality and social psychology

    Article • Social Psychological and Personality Science, October 2020, SAGE Publications

    Thomas Costello

  20. Cognitive biases, heuristics, and logical fallacies in clinical practice: A brief field guide for practicing clinicians and supervisors.

    Article • Professional Psychology Research and Practice, October 2020, American Psychological Association (APA)

    Shauna Bowes, Thomas Costello

  21. Intellectual humility and between-party animus: Implications for affective polarization in two community samples

    Article • Journal of Research in Personality, October 2020, Elsevier

    Thomas Costello

  22. Looking under the tinfoil hat: Clarifying the personological and psychopathological correlates of conspiracy beliefs

    Article • Journal of Personality, September 2020, Wiley

    Thomas Costello

  23. Social and Economic Political Ideology Consistently Operate as Mutual Suppressors: Implications for Personality, Social, and Political Psychology

    Article • June 2020, Center for Open Science

    Thomas Costello

  24. How your personality and politics shape your views on free will

    Article • Journal of Research in Personality, June 2020, Elsevier

    Thomas Costello

  25. Clarifying the Structure and Nature of Left-Wing Authoritarianism

    Article • May 2020, Center for Open Science

    Thomas Costello

  26. Intellectual Humility and Between-Party Animus: Implications for Affective Polarization in Two Community Samples

    Article • March 2020, Center for Open Science

    Thomas Costello

  27. Looking Under the Tinfoil Hat: Clarifying the Personological and Psychopathological Correlates of Conspiracy Beliefs

    Article • March 2020, Center for Open Science

    Thomas Costello

  28. How sexual objectification relates to psychopathic traits

    Article • Personality Disorders Theory Research and Treatment, November 2019, American Psychological Association (APA)

    Thomas Costello

  29. Personality Disorders as Emergent Interpersonal Syndromes: Psychopathic Personality as a Case Example

    Article • Journal of Personality Disorders, October 2019, Guilford Publications

    Thomas Costello

  30. Psychopathy as an Emergent Interpersonal Syndrome: Further Reflections and Future Directions

    Article • Journal of Personality Disorders, October 2019, Guilford Publications

    Thomas Costello

  31. Extending the Nomological Network of Sexual Objectification to Psychopathic and Allied Personality Traits

    Article • April 2019, Center for Open Science

    Thomas Costello

  32. Risky business: Psychopathy, framing effects, and financial outcomes

    Article • Journal of Research in Personality, February 2019, Elsevier

    Thomas Costello

  33. Is empathic contagion helpful or harmful? Overlooked heterogeneity in the Empathy Index.

    Article • Psychological Assessment, July 2018, American Psychological Association (APA)

    Thomas Costello

  34. Psychopathy and entertainment preferences: Clarifying the role of abnormal and normal personality in music and movie interests

    Article • Personality and Individual Differences, July 2018, Elsevier

    Thomas Costello

  35. Strengths and Weaknesses of Two Empathy Measures: A Comparison of the Measurement Precision, Construct Validity, and Incremental Validity of Two Multidimensional Indices

    Article • Assessment, May 2018, SAGE Publications

    Thomas Costello

  36. Psychopathy and Pride: Testing Lykken’s Hypothesis Regarding the Implications of Fearlessness for Prosocial and Antisocial Behavior

    Article • Frontiers in Psychology, February 2018, Frontiers

    Thomas Costello