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blind spot bias

ignoring our own biases

conformation bias

focusing on information that supports your views

subjective validation

something is true if my beliefs demand it to be true

semmelweis effect

rejecting new evidence that contradicts established views

choice-supportive bias

defending a decision after you've made the choice

immediate reward bias

prefer closer or easier benefits to far-off or difficult ones

illusion of control

believing you have influence over events which are proven random or outside your ability to influence them

overconfidence effect

excessive confidence in one's ability to answer questions reliably

irrational escalation

justify increased commitment based on prior investment

ostrich effect

ignoring obvious negative evidence or outcomes

impact bias

overestimating the intensity or duration of futre feelings

bandwagon effect

going with the crowd

mere exposure effect

liking things we're familiar with, or the more we see it, the more we like it

ingroup bias

give preferential treatment to those of your own group


relying on commonly held beliefs

authority bias

we assume authority figures to be informed, capable, and working in our interest. We trust them, sometimes irrationally

interloper effect

valuing 3rd-party opinions as objective

affect heuristic

basing a decision on how it makes you feel instead of a more objective analysis

negativity bias

negative stimuli have a greater effect than neutral or positive ones

anchoring effect

making decisions based on just one trait or piece of information, or just a few

false consensus effect

tendency to overestimate whether others agree with you

projection bias

assume others share your emotions, values, etc.

normalcy bias

assuming that the way things are is the best

rosy retrospection

remembering the past as ideal

primacy/recency effect

we remember the first and last things the best

von restroff effect

something that sticks out "like a sore thumb" is more likely to be remembered

outcome bias

tendency to judge a decision by its outcome rather than the quality of that decision

hindsight bias

seeing events as predicable after they've occurred

availability cascade

the more something is repeated, the truer it becomes

availability heuristic

estimating what is more likely if it is available in memory, especially from vivid, unusual, or emotional experiences

neglect of probability

our minds are not equipped to think mathematically and we don't really understand probability

belief in statistics

trusting statistics to be prepared honestly, and treating statistical descriptions as the truth

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