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Habit Systems: design, track and review

Step 6 of 8 in The Commons

Next in your path: 9.12.2 Motivation Systems: rewards and friction

What you'll be able to do
  • Explain, with honest numbers, what habit research does and does not show.
  • Design a small habit system (two or three stacked habits) instead of relying on one-off willpower.
  • Write precise if-then plans, including a plan for the obstacle you expect.
  • Track your habits in a way that research supports, without turning a missed day into a failure.
  • Measure how automatic a habit feels and read the trend over weeks.
  • Run a monthly review that uses your own data to keep, shrink, change or drop a habit.
Words in this course 42Open the Vocabulary Hall
01

From one habit to a system (and what the research really says)

In simple words

Last time you built one habit, like planting one flower. A system is the whole garden: where each plant goes, when you water it, and when you walk around to check what is growing. Gardeners do not promise every seed will grow, and neither do we. We use real numbers.

Key facts
  • Before this course: Show Up Every Day: Habits & Discipline (course 9.1). You should already know cue, routine and result, the "not 21 days" finding, if-then plans, and how to design your surroundings. We build on those and do not repeat them.
  • A habit system here means: a few habits placed on stable daily anchors, written as if-then plans, tracked simply, and reviewed on a schedule.
  • Honest numbers to keep in mind for the whole course:
FindingWhat it saysHonest limit
Lally and colleagues (2010), 96 volunteers, 84 daysThe median (middle) time to reach the plateau of automaticity was about 66 days; individuals ranged from 18 to an estimated 254 daysAbout half of participants had not reached a high enough automaticity level by day 84; automaticity was self-reported
Wood, Quinn and Kashy (2002), diary studies with studentsRoughly 35% to 43% of recorded daily behaviours were habits repeated in the same placeStudent samples; a rough guide, not a law
Webb and Sheeran (2006), 47 experimental testsA medium-to-large change in intention (d = 0.66) led to only a small-to-medium change in behaviour (d = 0.36)Wanting to change is not enough; this is why plans and tracking matter
Gollwitzer and Sheeran (2006), 94 testsIf-then plans had a medium-to-large effect on goal attainment (d = 0.65)A 2024 review of 642 tests (Sheeran, Listrom and Gollwitzer) found if-then plans still help, and its bias-corrected estimates are smaller than the 2006 figure
Harkin and colleagues (2016), 138 studies, 19,951 peoplePrompting people to monitor goal progress promoted goal attainment (d = 0.40)An average across many goals; larger when progress was physically recorded or reported to others
  • "d" is an effect size: roughly, how far apart the average results of two groups are. About 0.2 is small, 0.5 medium, 0.8 large. It is not a percent chance of success.
  • Takeaway: these tools help on average. None is magic, and your own results will vary.
Step by step
  1. Write "Before this course: Show Up Every Day (9.1)" at the top of a new page and list the three ideas from it you still use.
  2. Draw a table with the five rows above and write each finding in your own words.
  3. Next to each row, write one thing it changes about how you will plan (for example, the Webb and Sheeran row: "Do not rely on motivation alone").
  4. Write the sentence "A system is a few habits, anchors, a tracker and a review."
  5. Check: you can say the median (66 days) and the range (18 to about 254), and you can explain that d is not a percentage.
Watch on YouTube
Making and breaking habits (Dr. Pippa Lally)The Mental Wellbeing College · YouTube · youtube.com

Videos by other creators on YouTube, for reference. They are not made by or affiliated with The Future Market.

LESSON 01From one habit to a system (and what the research really says)
LESSON 01 / ANIMATED LESSON / AI VOICE00:00 / 01:15
Read the video script
[Host] "One habit is a start. A system is what keeps several habits running."
[Text on screen: median 66 days, range 18 to about 254] "In the best-known study, the middle time to a plateau was about 66 days, and people ranged from 18 to an estimated 254."
[Text on screen: intention d = 0.66, behaviour d = 0.36] "Wanting to change helps, but a big change in intention led to only a smaller change in behaviour."
[Screen: four boxes: anchor, plan, tracker, review] "So we build a system: anchors, plans, a tracker, and a review."
[Host] "Real numbers, no hype. Let's design it."
Try it now

Make your "honest numbers" card: the five findings in your own words, with one limit for each. Keep it where you plan your habits.

ClaudeStuck? Copy a ready-made prompt for Claude

Copy this, open Claude, paste it, and Claude will walk you through the lesson step by step.

For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.

I'm learning "Habit Systems: design, track and review" on The Future Market. Lesson 1: "From one habit to a system (and what the research really says)".

What the lesson teaches:
- Before this course: Show Up Every Day: Habits & Discipline (course 9.1). You should already know cue, routine and result, the "not 21 days" finding, if-then plans, and how to design your surroundings. We build on those and do not repeat them.
- A habit system here means: a few habits placed on stable daily anchors, written as if-then plans, tracked simply, and reviewed on a schedule.
- Honest numbers to keep in mind for the whole course:
- Finding - What it says - Honest limit
- Lally and colleagues (2010), 96 volunteers, 84 days - The median (middle) time to reach the plateau of automaticity was about 66 days; individuals ranged from 18 to an estimated 254 days - About half of participants had not reached a high enough automaticity level by day 84; automaticity was self-reported
- Wood, Quinn and Kashy (2002), diary studies with students - Roughly 35% to 43% of recorded daily behaviours were habits repeated in the same place - Student samples; a rough guide, not a law
- Webb and Sheeran (2006), 47 experimental tests - A medium-to-large change in intention (d = 0.66) led to only a small-to-medium change in behaviour (d = 0.36) - Wanting to change is not enough; this is why plans and tracking matter

The exercise I'm working on:
Make your "honest numbers" card: the five findings in your own words, with one limit for each. Keep it where you plan your habits.

I'm stuck. Please:
1. Explain the main idea in plain, simple words with one everyday example.
2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step.
3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.
I'm a parent helping my child (about 8 years old) with a lesson called "From one habit to a system (and what the research really says)" from the course "Habit Systems: design, track and review".

Here's what the lesson says:
Last time you built one habit, like planting one flower. A system is the whole garden: where each plant goes, when you water it, and when you walk around to check what is growing. Gardeners do not promise every seed will grow, and neither do we. We use real numbers.

The activity:
Make your "honest numbers" card: the five findings in your own words, with one limit for each. Keep it where you plan your habits.

Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words.
Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.
Open Claude
Sources
My notes
02

Anchors and stacks

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03

Sharper if-then plans, with an obstacle plan

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04

Tracking that helps (and tracking that hurts)

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05

Measuring automaticity

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06

The monthly review

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07

Honest limits and a system you can show

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++

Final project

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??

Quiz

  1. In the Lally study, about how long was the median time to reach the plateau of automaticity?

  2. What did Webb and Sheeran (2006) find about changing intentions?

  3. What is "habit stacking"?

  4. How many habits should you start with in a system?

  5. Why is a vague plan like "exercise more tomorrow" weak?

  6. What is an obstacle plan?

  7. What did Harkin and colleagues (2016) find about monitoring progress?

  8. Why track "days done out of days planned" rather than only a streak?

  9. What is one limit of the Lally automaticity data?

  10. What are the three numbers to check for each habit in a monthly review?

  11. What did the 2024 review of 642 if-then tests say after correcting for publication bias?

EX

Final exam

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CE

Certificate

This lesson is part of full access: every course and every level for one payment.