Dr. John Petrocelli

Professor of Psychology

Dr. John V. Petrocelli is a distinguished Professor of Psychology at Wake Forest University, where he has taught since 2007, rising through the ranks from Assistant to Associate and now full Professor. Known colloquially as the 'Professor of Bullshit,' he directs the Bullshit Studies Lab, pioneering research into bullshitting—a unique form of communication indifferent to truth or evidence, distinct from lying. His seminal book, *The Life-Changing Science of Detecting Bullshit* (2021), distills decades of empirical work into practical strategies for identifying and disposing of pervasive BS in daily life, business, and media. Petrocelli's scholarship spans experimental social cognition, judgment and decision making, with over 50 publications in elite journals like the *Journal of Personality and Social Psychology* and *Journal of Experimental Social Psychology*. He serves as Associate Editor for both *JPSP: Attitudes and Social Cognition* and *Personality and Social Psychology Bulletin*, shaping the field's discourse. Research foci include attitude strength and persuasion—exploring how certainty, ambivalence, and accessibility fortify or weaken beliefs against change; counterfactual thinking, where mental 'what if' simulations impact learning, memory, decisions, and even physician diagnostics; and metacognition, thoughts about thoughts that underpin effective BS detection. Petrocelli earned his Ph.D. in social psychology from Indiana University Bloomington (2007) after a B.A. from Westminster College. A TEDx speaker and keynote expert on evidence-based leadership, he consults on no-BS decision-making, contributes to *Psychology Today*, and advises tech firm Seekr. Courses like 'Misinformation, BSing, and Calling BS' equip students to navigate a post-truth world. In an era of fake news and buzzword salads, Petrocelli's work equips individuals and organizations to sharpen rusty BS detectors, fostering clearer communication, smarter choices, and critically discerning cultures. [Wake Forest Psychology](https://psychology.wfu.edu/john-petrocelli/), [LinkedIn](https://www.linkedin.com/in/johnvpetrocelli), [Book Insights](https://nextbigideaclub.com/magazine/life-changing-science-detecting-bullshit-bookbite/29360/).

Key Insights from Dr. John Petrocelli

Bullshitting is communication with little to no concern for evidence and/or established knowledge.

— Dr. John Petrocelli on BS Definition

Cues like buzzword salads ('Hidden meaning transforms unparalleled abstract beauty') signal BS.

— Dr. John Petrocelli on Detection Cues

Counterfactual potency influences affect, judgments, and decisions.

— Dr. John Petrocelli on Counterfactual Thinking

Attitude certainty resists persuasion via metacognitive stability perceptions.

— Dr. John Petrocelli on Attitude Strength

Notable Quotes from Dr. John Petrocelli

Your BS detector is rusty. It’s time to sharpen it.

— Dr. John Petrocelli

Bullshitting is a pervasive social behavior involving communication with little to no concern for evidence.

— Dr. John Petrocelli

BS is more dangerous than a lie because it doesn't pretend to care about the truth.

— Dr. John Petrocelli

Frequently Asked Questions about Dr. John Petrocelli

What is the difference between bullshitting and lying?

Bullshitting involves speaking without regard for truth or evidence—the bullshitter doesn't care if statements are accurate and may coincidentally be right but lacks basis. Lying requires knowing the truth and intentionally deceiving to hide it. Petrocelli's research shows bullshitters prioritize persuasion over accuracy, making BS more insidious as it evades standard fact-checks. Detecting BS demands questioning epistemic vigilance: Does the speaker show concern for evidence? Strategies include probing for sources and logical consistency. This distinction empowers better discernment in conversations, ads, and news. [Wake Forest](https://psychology.wfu.edu/john-petrocelli/), [Book](https://nextbigideaclub.com/magazine/life-changing-science-detecting-bullshit-bookbite/29360/).

How can people improve their bullshit detection skills?

Petrocelli advocates sharpening 'BS detectors' via metacognitive awareness: evaluate claims for evidence neglect, logical flaws, and vague profundity. Practice calling BS politely, seek primary sources, and embrace uncertainty over faux expertise. His lab's work reveals self-regulation boosts detection; avoid bullshitting yourself by admitting knowledge gaps. Applied in leadership, it cuts through corporate jargon for data-driven decisions. Regular exposure via his courses or book builds resilience against misinformation. [Research](https://psychology.wfu.edu/john-petrocelli/), [Skeptic](https://www.allamericanspeakers.com/celebritytalentbios/John+V.+Petrocelli/465364).

What role does counterfactual thinking play in decision-making?

Counterfactuals ('if only') simulate alternatives, influencing regret, learning, and choices. Petrocelli's studies show dysfunctional ones hinder experiential learning, like in Monty Hall problems, while potent ones sway judgments in dating or diagnostics. Understanding potency—vividness of imagined scenarios—helps harness it for better outcomes, avoiding hindsight bias traps. Relevant for therapy, management, and policy evaluation. [Publications](https://psychology.wfu.edu/john-petrocelli/).

Why is attitude strength important in persuasion?

Strong attitudes (certain, unambiguous, accessible) resist change. Petrocelli examines subcomponents like certainty from fluency or emotion decoding, predicting behavior-attitude links and persistence. Persuaders target metacognitions to weaken them; implications for advertising, politics, public health campaigns. Building personal strength via reflection fosters conviction. [JPSP](https://psychology.wfu.edu/john-petrocelli/).

Dr. John Petrocelli — Areas of Expertise

  • Bullshit Detection
  • Social Cognition
  • Judgment and Decision Making
  • Attitude Strength and Persuasion
  • Counterfactual Thinking
  • Metacognition
  • Professor described as the 'professor of bullshit'
  • joining for a 'bullshit or no bullshit' segment where big ideas meet a reality check

Dr. John Petrocelli — Show Appearances

  • Mornings in the Lab (2026-01-01)

Dr. John Petrocelli — Signal Brief

Signal Score: 20/100

Generated 2026-04-16T01:26:50.712Z