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Psychology & Science

Behavior Change Models

If you want to build an app, you use code. If you want to build a habit, you use behavior models. Here are the blueprints for the human mind.

R
Resolve Team
8 min read

Behavior isn't random. It follows predictable patterns. Stanford researchers and psychologists have spent decades mapping these patterns. Understanding them turns habit formation from a guessing game into engineering.

1. The Fogg Behavior Model (B=MAP)

Created by Dr. BJ Fogg at Stanford.

Behavior = Motivation x Ability x Prompt
  • Motivation: Your desire (high/low).
  • Ability: Simplicity of task.
  • Prompt: The trigger.

Application: To build a habit, make it easier (increase Ability) rather than relying on Motivation.

2. The Hook Model

How habit-forming products are built (Nir Eyal).

  1. Trigger: External or Internal cue.
  2. Action: The minimal behavior done in anticipation of reward.
  3. Variable Reward: The dopamine hit (uncertainty increases craving).
  4. Investment: User puts work in, increasing likelihood of return.

3. The Habit Loop

Popularized in "The Power of Habit" (Charles Duhigg).

Cue
Routine
Reward

Insight: You can't destroy a habit loop, but you can change it. Keep the Cue and Reward, but swap the Routine.

4. Identity-Based Habits

From "Atomic Habits" (James Clear). Change happens in layers.

"I am the type of person who doesn't miss workouts."

Start with identity. The behavior follows naturally.

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