False Assumption Registry


Psych Concepts Valid Without Data


False Assumption: Psychological theories like stereotype threat, ego depletion, and implicit bias remain valid even when replication data fails to support them.

Written by FARAgent on February 11, 2026

Psychology claims to be empirical. It relies on data and quantitative methods. Yet psychologists often ignore data that contradicts their intuitions.

The replication crisis exposed failures in key theories. Stereotype threat suggested stereotypes cause underperformance in tests. Ego depletion treated self-control like a depleting fuel tank. Implicit bias posited unconscious prejudices driving behavior. Replications failed for each. Responses dismissed the data. Personal experiences or redefined concepts kept the ideas alive.

Data shows these theories wanting. Defenders insist intuitions prove them real. Psychologists separate concepts from failed measures. The field questions if data matters when beloved ideas clash with evidence.

Status: Experts are divided on whether this assumption was actually false
  • Michael Inzlicht, a psychologist, raised early doubts about stereotype threat in a viral blog post. He pointed to replication failures for ego depletion and implicit bias, acting as a voice of caution in the field. [1] A prominent African American psychology professor championed stereotype threat in good faith. She dismissed replication concerns, drawing on her own experiences with the phenomenon. [1]
  • Bertram Gawronski, another psychologist, worked to revive implicit bias. He argued that flawed measures like the Implicit Association Test did not invalidate the core idea. [1]
Supporting Quotes (3)
“When I started voicing tentative doubts about stereotype threat in a blogpost that went viral, some of the responses pushed back.”— Does Data Matter in Psychology?
“I’ll never forget how a prominent African American psychology professor struggled to make sense of my doubts because she had experienced stereotype threat personally.”— Does Data Matter in Psychology?
“In a series of excellent papers, my buddy Bertram Gawronski makes the point that measures of implicit bias are not the same as the concept of implicit bias.”— Does Data Matter in Psychology?
The broader psychology field embraced ego depletion for two decades. It inspired hundreds of studies built on the theory. Replications later failed to support it, yet the promotion had already taken root. [1]
Supporting Quotes (1)
“For two decades, psychology got drunk on this theory and got busy spawning hundreds of studies.”— Does Data Matter in Psychology?
Stereotype threat gained traction in the 1990s. The theory held that reminding high-achieving Black students of their race triggered anxiety from stereotypes, leading to underperformance. It offered psychology a tidy explanation for achievement gaps, and it felt credible at the time. Critics now argue replications have exposed weaknesses in the evidence. [1] Ego depletion emerged around the same era. It compared self-control to a fuel tank that empties across tasks, spawning ideas about mental fatigue complicating efforts. The concept seemed intuitive to many experts. Mounting evidence from failed replications challenges its foundation. [1] Implicit bias took hold in the early 2000s. It posited hidden prejudices that unconsciously shape behavior, often measured by tools like the IAT. The theory promised ways to address prejudice. Growing questions surround its validity as measures failed to predict actions, prompting claims that the tools themselves were at fault. [1]
Supporting Quotes (3)
“Stereotype threat is the idea that people from negatively stereotyped groups choke under pressure when those stereotypes become salient. So, when high-performing Black students are reminded they're Black, they feel unnerved by negative academic-ability stereotypes and supposedly underperform on academic tests.”— Does Data Matter in Psychology?
“Ego depletion is the idea that self-control works like a fuel tank: If you use self-control in one domain, you'll have less available for another.”— Does Data Matter in Psychology?
“Implicit bias is the idea that many of us harbour prejudices that we are unaware of, that we cannot control, and that automatically influence our behaviour.”— Does Data Matter in Psychology?
These theories spread through the psychology community in the late 1990s and 2000s. Researchers leaned on personal intuitions and everyday logic to promote them. When replications faltered, many resisted by redefining the ideas or prioritizing anecdotes over data. [1] The field often responded to setbacks by affirming the concepts' value. For ego depletion, proponents diluted it to the common experience of mental tiredness, keeping the notion alive despite challenges. [1]
Supporting Quotes (2)
“psychologists will regularly ignore data when it goes against their own intuitions and personal experiences.”— Does Data Matter in Psychology?
“Even if the data aren't there, the concept is still solid. This is especially true if you water down ego depletion to mental fatigue. Everyone knows that after a full day of work, you feel tired, and certain tasks seem harder.”— Does Data Matter in Psychology?
Ego depletion absorbed considerable effort over two decades. Hundreds of studies consumed resources before replications raised serious doubts. [1]
Supporting Quotes (1)
“For two decades, psychology got drunk on this theory and got busy spawning hundreds of studies, but then the buzz-kill data police turned the music off.”— Does Data Matter in Psychology?
The replication crisis hit psychology in the 2010s. It spotlighted issues with stereotype threat, ego depletion, and implicit bias through a series of failed replications. Critics argue this exposed empirical shortcomings in the theories. [1] More recent papers, emerging around 2015 onward, demonstrated that implicit bias measures utterly failed to forecast behavior. This led some to decouple the concept from its tools, though the debate continues. [1]
Supporting Quotes (2)
“This is perhaps clearest when we look at the various casualties of the replication crisis—and people’s responses to these failures.”— Does Data Matter in Psychology?
“I recently wrote about the death of implicit bias when describing a new paper on the utter and complete failure of measures of implicit bias to deliver on their vast promise.”— Does Data Matter in Psychology?

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