Psi Phenomena

Confirmation Bias

Cognitive Bias

Citation Formats

General Reference

Divinity Atlas. "Confirmation Bias." Accessed August 30, 2026. https://divinity.interactivelion.com/psi-phenomena/confirmation-bias.

APA Style

Divinity Atlas. (n.d.). Confirmation Bias. Retrieved August 30, 2026, from https://divinity.interactivelion.com/psi-phenomena/confirmation-bias

BibTeX

@misc{divinityatlas-confirmation-bias,
  author = {Divinity Atlas},
  title = {Confirmation Bias},
  year = {2026},
  url = {https://divinity.interactivelion.com/psi-phenomena/confirmation-bias},
  note = {Accessed August 30, 2026}
}

Confirmation bias is the well documented psychological tendency to search for, interpret, favor and recall information in ways that confirm a belief already held, while giving disproportionately less attention to information that would disconfirm it. In the study of paranormal and psi claims it is invoked to explain why a believer in a psychic, a haunting or an alternative healing method tends to notice and remember apparent successes while explaining away or simply forgetting failures, one of the standard cognitive mechanisms the skeptical literature holds responsible for sustaining belief independent of the underlying claim's truth.

Facts

Research

Principal Researcher

Peter C. Wason, whose 1960 and 1966 reasoning experiments first demonstrated the effect under controlled conditions. 2

Key Experiment

The Wason selection task, a four card logic problem in which subjects overwhelmingly choose to test cases that could confirm a stated rule rather than cases that could falsify it. 2

Terminology

Term Coined

Wason's 1960 conceptual task and 1966 selection task established the phenomenon experimentally; the phrase confirmation bias itself came into general use in psychology in the years that followed his original papers rather than appearing in them verbatim. 2

Position Profile

Principal Critic

Skeptical investigators of psychic and cold reading claims cite confirmation bias, alongside the Forer effect, as the mechanism by which a sitter recalls the statements that fit and discounts the ones that do not. 1

Evidence

Replication Status

Well replicated across decades of reasoning and social cognition research, and treated as one of the most robust findings in cognitive psychology. 2

Learn More

The Rule That Was Never Tested to Fail

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

In 1960 the psychologist Peter Wason set subjects a deceptively simple task. He told them he had a rule in mind that applied to sequences of three numbers, showed them one example, 2, 4, 6, and asked them to discover the rule by proposing their own triples and being told, each time, whether the triple fit. Wason's actual rule was almost nothing: any three numbers in ascending order. Subjects, though, tended to form a much narrower hypothesis from the single example, commonly guessing something like even numbers increasing by two, and then went on to test that narrower guess almost exclusively with triples they expected to confirm it, 8, 10, 12 and the like, rather than triples designed to break it, such as 1, 2, 3. Most announced their overly specific rule with confidence, having never once tried to disprove it. Wason returned to the same territory in 1966 with the selection task, a four card problem asking subjects which cards they needed to turn over to test a conditional rule, and found the identical pattern: people reliably chose the cards that could confirm the rule and skipped the one card that could actually falsify it. Neither experiment was about anything paranormal or occult. Wason was studying ordinary logical reasoning in a laboratory setting, and what he found was a basic asymmetry in how people test their own beliefs, seeking confirmation far more readily than seeking the evidence that could take a belief apart.

Why the Reading Always Feels Right

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

A psychic reading or a horoscope typically offers a string of general statements, some vague, some contradictory, delivered in a way that leaves the sitter free to decide which ones landed. Confirmation bias is the standard skeptical explanation for why a session built this way so often feels startlingly accurate afterward. A sitter who hears a dozen statements will tend to notice, remember and later report the two or three that seemed to fit their own life, while the misses simply fall away unremarked, not through dishonesty but through the same asymmetric search for confirming evidence Wason documented in the laboratory. This mechanism works alongside the Forer effect, the tendency to read a vague personality description as personally specific, and the two are usually cited together in the skeptical literature: the Forer effect explains why the statements feel individually plausible, and confirmation bias explains why the sitter's own memory of the session afterward skews so heavily toward the hits. Investigators studying cold reading techniques, in which a practitioner extracts information through general statements and the sitter's own reactions rather than through any paranormal source, treat this pairing as the core of how the technique produces its effect without requiring the practitioner to know anything about the sitter in advance. The atlas records this as the explanation offered by the discipline's critics; it does not itself adjudicate between that account and the practitioners' own claims about the source of their information.

Cross-Tradition Connections