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Implicit bias

Implicit bias is an unintended or unrecognized systematic association, preference, or judgment that influences behavior, decisions, or outcomes.

How 3 Manning books explain it

Think Like a Software Engineering Manager

Unconscious bias is an implicit and often unrecognized tendency to evaluate or treat people differently based on learned associations.

How it is used
Uses bias awareness to guide fair treatment, leadership transitions, and equitable rewards and recognition.
How deep it goes
Provides practical awareness, reflection, data use, peer input, and retrospective review rather than psychological or technical internals.
Examples
Uses engineering-manager transitions, technical-debt work, employee surveys, peer awards, nominations, and retrospective recognition reviews.
What you can do after
Practice/perform fairer decisions by applying explicit criteria, inviting broader input, listening actively, and reviewing outcomes for bias.

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Lead Developer Career Guide

An implicit and often unrecognized preference or judgment that influences a person's decisions or behavior.

How it is used
Guides hiring, delegation, collaboration, and respectful workplace relationships.
How deep it goes
Defines automatic social stereotypes, names common forms, and recommends self-awareness and broader recruiting practices.
Examples
Uses a biased team-hiring decision and examples including ageism, beauty bias, conformity bias, affinity bias, and confirmation bias.
What you can do after
Practice self-awareness, identify biased judgments, respect coworkers, and seek broader talent pools.

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How Large Language Models Work

Implicit bias is an unintended or unconscious systematic association or preference that influences judgments or behavior.

How it is used
Frames LLM deployment as a context-specific harm assessment rather than a general pass-fail judgment about racial bias.
How deep it goes
Connects training data, unexpected use, benchmark limits, and monitoring, but does not provide a complete mitigation procedure.
Examples
Uses African American Vernacular English discrimination and debunked race-based medical advice as concrete failure cases.
What you can do after
Evaluate proposed LLM uses for contextual harms and identify when safeguards are insufficient for deployment.

Read how How Large Language Models Work explains implicit bias →

Related concepts

These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.