Nextdoor Behavioral Diagnosis

My assignment was to complete a behavioral diagnosis of Nextdoor, a private social network for neighbors to collect locally. Popular use cases include sharing news in one’s community, giving or asking for support, and soliciting recommendations for local services. A behavioral diagnosis is a structured process that uses behavioral science to understand why individuals do (or don’t do) a specific action, then design interventions to drive the desired outcome.

Note, this project was a hypothetical case; I was not engaged by Nextdoor for this work.


My Role:

As a behavioral scientist / designer, my role was to review the Nextdoor user experience and create three solution mocks for prioritized recommendations.


Approach Summary:

  1. Identified a target user behavior, and made it wildly-specific — intentionally: new users create a post within 5 minutes of onboarding.

  2. Documented assumptions and constraints for the project (e.g., in light of actual Nextdoor funnel conversion data, I assumed which parts of the journey have high user drop-off).

  3. Conducted a behavioral diagnosis.

    • Outlined every step user must take to complete the target behavior.

    • Conducted a literature review to understand existing research and how it might apply to this context (e.g., what motivates individuals to participate in online communities).

    • Summarized logistical barriers, psychological biases, and benefits.

  4. Prioritized potential interventions for experimentation.

  5. Developed design solution mocks for the top 3 experiments (shown below).


What I’m Proud of:

  • Applied learnings from Irrational Labs’ Behavioral Economics Bootcamp, among other self-directed learnings and experience, demonstrating proficiency in behavioral science.

  • Leveraged AI (Figma Make) to accelerate the production of design mocks.

[NOTE - images below to be updated]


Design Solution Overview

Below are the top 3 prioritized experiments to drive the target behavior (create a post within 5 minutes of onboarding), ordered from lowest to highest complexity.

Experiment 1:
Email marketing enhancements

Hypothesis: If we implement copy and light design enhancements to the initial email, then more prospective users will be inclined to create an account because Nextdoor appears as a vibrant and trustworthy online community to which I (the user) can contribute.

Experiment 2:
Lower-stakes first post

Hypothesis: If we encourage users to respond to outstanding Q&A as their first engagement on Nextdoor (instead of creating a post from scratch), then they will be more likely to take action because this decreases the barriers to posting and promotes reciprocity.

Experiment 3:
First post incentive

Hypothesis: If we offer rewards for creating or responding to Nextdoor posts, then users will be more likely to contribute content and they’ll internalize that motivation over time.