PsychologyExplain Like I'm 5Intermediate
Applied Behavioral Psychology, a free psychology course on Tomo

Applied Behavioral Psychology

Examine the unseen psychological forces shaping daily decisions, habits, and social interactions. Learn to spot behavioral patterns in real time and design environments that work with human nature.

Like Duolingo, but for Applied Behavioral Psychology. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through Designing Better Choices and Social Context and Judgment. It assumes you already know the basics.

12 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Pippa the Platypus, the guide who teaches the Applied Behavioral Psychology course
Applied Behavioral Psychology
with Pippa the Platypus
12
Levels
2
Sections
5
Min/day
What you'll learn

Key ideas in Applied Behavioral Psychology

  • Defaults convey an implicit recommendation from authority figures.
  • Endorsement signals matter more than physical inertia in choices.
  • Users assume architects chose the pre-set option for good reason.
  • Sludge introduces deliberate administrative and cognitive burdens.
  • Added friction frustrates users into abandoning intended choices.
  • Sludge exploits self-regulation fatigue to preserve company revenue.
  • A decoy is completely dominated by the target on all dimensions.
  • Asymmetric dominance makes evaluating the target feel effortless.
  • The decoy shifts focus from absolute price to relative value.
  • A single default harms users when personal preferences vary widely.
  • Active choosing forces conscious deliberation over trade-offs.
  • Channel factors open immediate, concrete pathways to action.
  • Tiny logistical hassles suppress behavior despite high intent.
  • Boosting motivation often fails if physical friction remains.
  • Hyperbolic discounting causes discount rates to drop steeply in the short term and flatten over longer horizons
  • Present bias makes an immediate reward feel qualitatively distinct from waiting even a single day in the future
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Applied Behavioral Psychology the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Why We Pick the Pre-Set Option

Why do people usually stick with pre-selected choices?

Get it right to open this lesson and 11 more in the app.

Course map

Where Applied Behavioral Psychology takes you

  1. 1

    Designing Better Choices

    • Choice Architecture and Defaults
    • Closing the Intention-Action Gap
  2. 2

    Social Context and Judgment

    • Social Proof and Normative Influence
    • De-Biasing High-Stakes Decisions

2 sections · 4 units · 12 levels. Built to play, not to enroll.

New

Tomo is in ChatGPT

Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.

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How it's taught

You pick the voice

This course
Explain Like I'm 5

Applied Behavioral Psychology is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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Start Applied Behavioral Psychology today.

Download Tomo, search Applied Behavioral Psychology, and play your first lesson in under a minute.