---
title: "Default Bias"
type: concept
tags: [behavioral-psychology, persuasion, user-engagement]
sources: [product-behavioral-nudge-engine]
last_updated: 2026-04-20
---

## Definition
利用用户默认倾向（如接受预起草内容）来提升行动完成率的行为心理学原理。

## Mechanism
- 预起草回复、方案、内容
- 用户只需确认或微调，而非从零开始
- 减少决策摩擦，提升完成率

## Example
> "I've drafted a thank-you reply for this 5-star review. Should I send it, or do you want to edit?"

## Related Concepts
- [[Momentum Nudge]]
- [[Opt-Out Completion]]
- [[Cognitive Load Reduction]]

## Connections
- [[Behavioral Nudge Engine]] ← leverages ← [[Default Bias]]