← Studio Cruz

Case Study — 02

Inner Authority
Diagnostic
Quiz

A Human Design quiz that doesn't just tell you your type — it maps how you actually make decisions, with percentage-based results across all eight inner authority profiles.

Built By Joy Cruz-Medranda
Tools Replit · JavaScript · AI-assisted dev
Type Interactive Web App
 Try it live

Most HD quizzes just confirm what you already put in

Every Human Design quiz I had seen had the same problem: you enter your birth data, get your chart, and then you're left to figure out what it actually means for how you make decisions. The information was technically there — but the lived experience of understanding your inner authority was completely missing.

I wanted something that felt more like a diagnostic. A tool that surfaces decision-making mechanics through questions about real behavior — not data entry — and returns results that show the full picture, not just a single label.

What it looks like

Landing screen
Landing screen
Authority selector
Authority selector
Question screen
Question screen
Results screen
Results screen

How the system works

01
10-Question Diagnostic Flow

Each question is designed to surface behavioral patterns around decision-making — not to confirm a pre-existing type, but to reveal how someone actually processes choices in real life situations.

02
8 Authority-Specific Result Sets

Results map to all eight Human Design inner authority types — Emotional, Sacral, Splenic, Ego/Heart, Self-Projected, Mental/Outer Authority, Lunar, and No Inner Authority. Each result was written specifically for that authority's lived experience.

03
Percentage-Based Scoring

Answers are weighted across all eight authority types so results show your primary alongside how strongly other patterns show up. More nuanced and more accurate than a simple highest-score-wins output.

04
Polished UI Built Without a Dev Background

Designed and built entirely through AI-assisted development in Replit — dark atmospheric aesthetic, smooth transitions between questions, and a results screen that feels like a real product, not a hobby project.

Why this project matters to me

Deep subject matter expertise translates directly into better tool design. I know Human Design well enough to build something accurate, not just visually appealing.

Functional, deployable web apps are within reach without a traditional dev background — when you know how to use AI as a co-builder.

The diagnostician approach I bring to every project: understand the real problem first, then build something that actually solves it instead of just looking like it does.

A working proof of concept for a tool that could be productized — as a digital product, a lead magnet, or a client-facing experience for HD practitioners.

What went into building this

AI-Assisted Development Interactive Quiz Logic Human Design Framework Percentage-Based Scoring UI / UX Design Replit Deployment

Work With Me

Want a custom quiz or diagnostic tool?

I build interactive tools for coaches, creators, and small businesses — quizzes, lead magnets, and diagnostic experiences that actually convert.

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