Examine the evidence for and against
Systematically list what supports your interpretation and what doesn’t — like a fair-minded lawyer, not a prosecutor.
Why it works
Confirmation bias drives most unchecked appraisals: attention focuses on evidence that supports the interpretation (he’s never replied promptly) and discounts contradictory evidence (he was helpful last week). Deliberately searching for counter-evidence — not to disprove the interpretation but to test it fairly — corrects the sampling bias and gives the prefrontal cortex more complete data to work with.
How to do it
- Write two columns: evidence FOR the interpretation and evidence AGAINST.
- Force yourself to find at least two items in each column, even if the evidence against feels weak.
- Look for times the interpretation was wrong in similar situations.
- Ask what a friend who cared about you and the truth would say about this evidence.
Evidence
Examining evidence for and against a belief is a core cognitive restructuring technique with strong RCT support in CBT for anxiety and depression. Confirmation bias is a well-documented cognitive tendency; structured counter-evidence search is the studied corrective. Nickerson’s review documents confirmation bias as a ubiquitous, multi-form tendency to over-weight belief-consistent evidence, which is precisely the sampling error the two-column search is built to counteract. (rct)
The exercise works best when done in writing and with some distance from the peak; when done mentally under high emotion, the "evidence against" column tends to be underpowered.
Sources
- Clark & Beck (2010), Cognitive Therapy of Anxiety Disorders — evidence examination techniques
- Nickerson, R. S. (1998). Confirmation Bias: A Ubiquitous Phenomenon in Many Guises. Review of General Psychology, 2(2), 175-220.
- Hofmann, S. G., Asnaani, A., Vonk, I. J. J., Sawyer, A. T., & Fang, A. (2012). The Efficacy of Cognitive Behavioral Therapy: A Review of Meta-analyses. Cognitive Therapy and Research, 36(5), 427-440.
Common mistake
Listing "evidence against" that consists of wishes rather than actual events — "maybe he didn’t see it" as counter-evidence rather than "I know from past experience he sometimes responds late."
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More practices for Check the Facts, Made Practical
- Name the emotion and what triggered it
Start by identifying the emotion specifically and the event that preceded it — without mixing interpretation in.
- Identify the interpretation driving the emotion
Find the specific thought or belief that is generating the emotional response — not the event, but the meaning you assigned.
- Ask whether the emotion fits the facts
After checking, decide whether your emotion is warranted by the actual facts — not the interpretation.
- Rule out mind-reading and fortune-telling
Catch the two most common interpretation errors — assuming you know what someone is thinking, or what is about to happen.
- Check for catastrophizing
Test whether you are amplifying the likely outcome beyond what the evidence supports.
- Decide on a regulation strategy based on what the facts actually show
Use the outcome of checking the facts to choose the right next step — not the same step every time.
Related concepts
- Dialectical Behavior Therapy (DBT) Skills, Made Practical
The four DBT skill sets, the mechanisms behind them, and an honest read on the evidence
- Cognitive Reframing, Made Practical
How reappraisal changes emotion, the common distortions, and how to do it without toxic positivity
- Cognitive Behavioral Therapy (CBT), Made Practical
The core techniques, the mechanisms, and where the evidence is strongest