An anchoring bias occurs when you focus on personal opinion versus empirical knowledge direct experience versus indirect experience empirical knowledge versus personal opinion one piece of information versus all of the information

The answer is:

one piece of information versus all of the information.

Quick information:

The first bit of information you learn can sometimes bias the decision you make and thus, psychologists refer to this as the anchoring bias. Anchoring is a cognitive bias for an individual to rely too heavily on an initial piece of information required when making decisions.

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