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Case · M3 × Start (professional network)

LinkedIn: the profile strength meter

LinkedIn's profile meter shows how complete your profile is and starts new members with some progress already filled in. Hooked and Actionable Gamification both use it as a progress example. LinkedIn has published no controlled data on its effect; figures like “+20%” circulate without a source.

M3 ×StartContent / community

The outcome · 2012

No public controlled data on the meter's effect on profile completion; the percentages that circulate online are unsourced and should not be cited. In Feb 2012 LinkedIn reweighted completeness toward fields members control, such as Skills (LinkedIn blog).

Case grade for the number: D. Evidence grade for the mechanism link: D.

Anecdote

Read the source

Stage cell: M3 × Start (professional network).

What they did. A profile-strength meter (Beginner → All-Star) with no numeric scale that starts new members partly complete and always shows the next section to add.

The mechanism. Endowed progress: a head start makes finishing feel closer HK-ACT32 (Hooked Ch.3) F10 (The endowed progress effect: how artificial advancement increases effort, Nunes & Dreze, Journal of Consumer Research, 2006). Chou's progress bar GT#4 (Actionable Gamification Ch.6, p.111) pulls people toward completion, each completed section is profile enrichment that becomes stored value HK-INV11 (Hooked Ch.5), and every small step commits the member further INF-T-CC-05 (Influence Ch.3, p.53). Chou also notes LinkedIn leaned on extrinsic, Left-Brain drives and was light on creativity and curiosity, one reason many profiles sat idle.

The outcome. Case grade D. Anecdote or unverified secondary sources. No controlled result has been published. The meter is a classic design, not a measured win.

What it means at your stage. Endowed progress is well supported in research (grade B), but your version still needs a test: start users at 20-30%, show one next step, and measure completion and downstream activity against a control.

Caveats. Do not repeat "+20%" or "+55%" claims; they have no source. Mechanism link Evidence grade D. Practitioner framework or anecdote: plausible, untested. for LinkedIn specifically.

Try this

The techniques behind it

Each one is a starting point, not a recipe. Gamify It turns a technique into an experiment card for your product: the change, the metric, the guardrail and how long the test needs at your traffic.

  • TechniqueEvidence grade B. Moderate evidence: solid studies with some limits.

    Endowed progress that credits real steps

    a head start you actually earned

    Start new users partway along a setup checklist by crediting things they have really done (account created, email confirmed), show the single next step, and make each step deliver value to the user, not just data to the company.

  • TechniqueEvidence grade C. Limited evidence: few or small studies.

    Progress Bars (GT#4)

    visible completion meter

    Show a meter of meaningful steps toward a Win-State, so the visible gap nudges users to finish. Chou's anchor case is LinkedIn's profile-completeness bar, which lifted completion after an easier interface on its own had not.

  • TechniqueEvidence grade B. Moderate evidence: solid studies with some limits.

    Foot-in-the-door ladder with the endpoint visible

    small first step, larger steps later

    Begin with a first step nearly everyone accepts (a free calculator, saving a result), then offer larger related steps: a profile, a first project, inviting a teammate, a trial, a plan. Each rung should deliver value on its own, stopping should cost nothing, and the endpoint (price, renewal, data) should be visible from the first rung.

Limits

What we don’t claim

  • The Hook Model is a practical design tool, not a validated or complete theory of behavior.Hooked, Introduction
  • Octalysis is a practitioner framework built from observing games, not a validated scientific model.Actionable Gamification Ch.15, pp.399-400
  • Left Brain and Right Brain are a metaphor for extrinsic and intrinsic motivation, not a claim about neuroscience.Actionable Gamification Ch.13, pp.342-343
  • No success is attributed to a single technique: real outcomes have many causes.
  • Company names are used editorially; no endorsement is implied.

Sources

  • Hooked · Nir Eyal

    Ch.3 · Ch.5

  • Actionable Gamification · Yu-kai Chou

    Ch.6, p.111 · Ch.3, p.39

  • Influence · Robert Cialdini

    Ch.3, p.53

  • Profile completeness · LinkedIn blog, 2012

    Case grade B. Company-reported numbers.

  • The endowed progress effect: how artificial advancement increases effort · Nunes & Dreze, Journal of Consumer Research, 2006

    Evidence grade B. Moderate evidence: solid studies with some limits.

Source IDs: CASE-M03HK-ACT32GT#4HK-INV11INF-T-CC-05F10

Book content is paraphrased, never quoted at length. Last verified October 23, 2026.

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