Watch for
Using personality labels for others that you would resist applying to yourself.
Social & PerceptionBias #53
Trait Ascription Bias
We see ourselves as flexible and others as fixed.
The tendency to view ones own personality as adaptable and context-dependent while viewing others personality as fixed and stable.
Why it matters: Related to fundamental attribution error and actor-observer asymmetry.
Try this
Ask whether a pattern would hold in a different context before labelling someone.
Real-world example
"I am late because of traffic but my colleague is late because they are disorganised."
Key researchers
John Chambers
First described in 2008
Psychological mechanism
Information asymmetry. We have rich data about our own behaviour across contexts. For others we see a narrower slice and infer consistency.
Debrief
Biases are not character flaws. They are recurring patterns in how minds compress uncertainty, save energy, and narrate reality. Once you recognise the pattern, you can slow the decision down, test the assumption, and make space for a better explanation.
Sources
Original ResearchChambers et al. (2008) — Trait ascription
EncyclopediaWikipedia overview