Evidence Bias

The unfair weighting or dismissal of evidence based on its source or form, rather than its content. It’s the habit of automatically accepting a statistic from a known source while reflexively dismissing an eyewitness account as "just a story." This bias pre-filters reality, allowing some pieces of information in while barring others at the gate, regardless of their actual merit. It’s the intellectual equivalent of judging a book by its cover and refusing to open it.

Example: "He wouldn't believe my first-hand account of the protest, but immediately trusted a police report that contradicted it. That's Evidence Bias in action."

Evidence Bias by Dumu The Void March 11, 2026

Evidence Objectivity Bias

A variation of objectivity bias where something only counts as evidence if the person making the judgment says it's evidence. "That's not evidence because I say so." The bias replaces objective standards of evidence with personal fiat, making the individual the sole arbiter of what counts as proof. Evidence Objectivity Bias is what allows conspiracy theorists to dismiss mountains of data while accepting a single tweet as proof. It's what allows bad-faith arguers to demand evidence, then reject it, then demand different evidence, then reject that—because the real standard is not evidence but agreement. If you agree with me, your evidence counts; if you don't, it doesn't. The bias is the "because I said so" of epistemology, the final refuge of those who have no arguments left.

Example: "She provided study after study showing vaccine safety. He dismissed each one with Evidence Objectivity Bias: 'That's not real evidence.' When she asked what would count, he said 'I'll know it when I see it.' He never saw it. The bias had made him the sole judge of what counts as proof—and his judgment was that nothing that disagreed with him could ever count. Evidence wasn't the issue; control was."

Evidence Objectivity Bias by Dumu The Void February 20, 2026

Evidence-Based Bias

The specific bias where one treats "evidence-based" as an automatic warrant for one's position and a automatic disqualifier for others', without actually engaging the quality, relevance, or interpretation of the evidence. Evidence-Based Bias operates when someone says "the evidence supports my view" as a conversation-ender, without acknowledging that evidence is always interpreted, that different evidence can support different conclusions, that evidence alone never dictates policy or values, and that "evidence-based" is often claimed by all sides. It's the bias that turns the legitimate principle of grounding claims in evidence into a rhetorical cudgel.

Example: "He kept saying his position was 'evidence-based' as if that settled everything—pure Evidence-Based Bias, using the word 'evidence' to avoid actually discussing what the evidence showed."

Evidence-Based Bias by Dumu The Void March 13, 2026

Bias of Neutral and Impartial Evidence

A bias that treats Western evidentiary hierarchies—privileging quantitative over qualitative, experimental over observational, published over experiential—as neutral, universal, and the only legitimate ways to know. The Bias of Neutral and Impartial Evidence ignores that what counts as evidence is shaped by power, that different domains require different kinds of evidence, and that Western evidence standards have been used to exclude marginalized knowers. It presents "evidence" as a pure category, erasing its politics. Those with this bias don't see their evidentiary standards as one tradition; they see them as evidence itself. Everyone else has anecdotes, stories, or bias.

"That's just anecdotal, not real evidence." Bias of Neutral and Impartial Evidence: treating quantitative data as the only evidence, dismissing experience, testimony, and qualitative research. The speaker never considered that for some questions, anecdotes are the only evidence available. Their evidence was just evidence; everything else was nothing."

Bias of Neutral and Impartial Evidence by Dumu The Void March 8, 2026

Evidence Biases

Systematic distortions in what counts as evidence, how evidence is gathered, and how evidence is weighed. Evidence Biases include: privileging quantitative over qualitative evidence; treating anecdotal evidence as worthless even when it's all that's available; demanding evidence from those who lack power while accepting it from those who have it; ignoring evidence that doesn't fit the frame; collecting evidence only where it's easy or funded. Evidence Biases shape not just what we know but what we can know—what counts as a fact and what gets dismissed as mere anecdote.

Evidence Biases "She shared her experience of discrimination. Response: 'That's just anecdotal—where's the real evidence?' That's Evidence Bias—treating personal testimony as worthless while demanding quantitative studies that don't exist. Experience is evidence; it's just not the kind you're used to. Evidence biases make us miss what's in front of us because it doesn't fit our evidence categories."

Evidence Biases by Dumu The Void March 1, 2026

Evidence-Based Biases

The collection of biases that arise from the misapplication of "evidence-based" thinking—treating evidence as a magic word rather than a practice, demanding evidence asymmetrically, mistaking certain kinds of evidence (usually quantitative) as inherently superior, ignoring the values and assumptions embedded in what counts as "evidence," and using "evidence-based" to dismiss any claim that doesn't fit narrow evidentiary standards. These biases don't reject evidence—they fetishize it, turning a valuable tool into a weapon of dismissal and a shield against genuine engagement with complexity, uncertainty, and other ways of knowing.

Example: "His Evidence-Based Biases meant he demanded randomized controlled trials for community wisdom that had worked for centuries—not because he valued evidence, but because he valued only his kind of evidence."

Evidence-Based Biases by Dumu The Void March 13, 2026