Phase 01: Validate

Validate Your Coaching Program & Online Course Ideas: Mom Test, Customer Development, Design Sprint Compared

7 min read·Updated April 2026

Are you a life coach with a new workshop idea? An online tutor launching a group program? Many in coaching and online education struggle to get honest feedback on new program concepts. Your clients or students might give polite answers, not the truth. This guide shows how the Mom Test, Customer Development, and Design Sprints help you get real insights to build programs people truly need and will pay for.

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The Quick Answer

Use The Mom Test for early, one-on-one conversations where you need honest answers about client problems and their past behavior. It's for validating a new coaching niche or course topic. Use Customer Development when you want a structured way to test specific ideas (like pricing or program formats) across a larger group of potential clients or students. Use a Design Sprint when you have an existing course or platform and need to quickly test a specific design improvement, like a new lesson layout or checkout process.

Side-by-Side Breakdown

The Mom Test (Rob Fitzpatrick): Ask about what clients have done in the past, not what they might do in the future. Never mention your new '6-Figure Coaching Accelerator' or your 'Mindset Mastery' course idea directly. Let them tell you their story and struggles. Best for: One-on-one early discovery calls to understand client pain points before you build anything. Strength — gets rid of polite, unhelpful feedback. Weakness — takes effort to avoid pitching your idea.

Customer Development (Steve Blank): You start with a clear idea (a 'hypothesis') to test with clients. For example, 'I believe coaches struggle to get clients because they lack a clear sales script.' You talk to many clients to see if your idea is true. It’s structured and can be repeated. Best for: Systematically checking if your course curriculum or coaching package solves a real problem for many people. Strength — helps a team stay on track and learn together. Weakness — can feel less like a chat and more like a formal survey.

Design Sprint (Jake Knapp / Google Ventures): A five-day process to define a problem, sketch solutions, decide on the best one, build a quick prototype, and test it with real users. Best for: Improving parts of an existing online course platform (like Kajabi or Teachable), a membership site (like Mighty Networks), or a student portal. Strength — creates a tested improvement in just one week. Weakness — needs a full five days and a few people working together.

When to Choose The Mom Test

Use The Mom Test for every early, one-on-one talk with a potential client or student. The main rule — ask about their life and problems, not about your idea — is the most helpful skill for any coach or course creator. It stops you from spending weeks building a 'Time Management for Entrepreneurs' course that clients politely said they'd buy but never actually would. Instead, you'll uncover that their real struggle is 'delegating tasks' or 'setting boundaries,' which leads to a more in-demand program.

When to Choose Customer Development

Choose Customer Development when you have a co-coach or a small team building out a new program. It gives everyone a shared way to conduct and track client conversations. For instance, your hypothesis might be: 'Online course buyers prefer short video lessons over long text lectures.' Before each interview, you note this down. After each chat, you record what you learned and see if your hypothesis was right or wrong across all your conversations. This is great for refining a group coaching program’s structure or testing different pricing for a new masterclass.

When to Choose a Design Sprint

Use a Design Sprint when you have an existing online course or coaching product with a clear design problem. Maybe your course's checkout page has too many people leaving before they buy. Or your student onboarding doesn't clearly show them how to start their first module in Thinkific. Or you can't decide between two ways to build a new interactive quiz. A Design Sprint is for fixing things in a product you already offer, not for figuring out if your idea for a 'Life Purpose Coaching' program is good in the first place.

The Verdict

Learn The Mom Test interview style and use it in every early conversation about a new coaching package or online course idea. If you're working with a co-instructor or team, add Customer Development's method for tracking your ideas and client feedback to stay aligned. Only use a Design Sprint after your first cohort has gone through your course or your first few clients have completed your program, and you need to improve their experience.

How to Get Started

Read The Mom Test (it's a quick, powerful read for coaches and course creators). Write five questions for your next potential client or student conversation. Make sure these questions only ask about their past actions, their current ways of dealing with problems, and what they've already spent money on. Remove any question that starts with 'Would you...' or 'Do you think...' For example, ask 'What have you tried to solve your feeling of overwhelm?' instead of 'Would you buy a course on stress relief?' Aim to have three such conversations this week.

RECOMMENDED TOOLS

Notion

Track your customer development hypotheses and interview notes in one place

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Typeform

Turn your Mom Test questions into a follow-up survey for broader reach

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FREQUENTLY ASKED QUESTIONS

What is the core rule of The Mom Test?

Never ask anyone if your idea is good. Instead, ask about their life and problems. Good questions: 'How do you currently handle X?' 'What did that cost you?' 'What have you already tried?' Bad questions: 'Would you use this?' 'Would you pay for this?'

Does Customer Development still apply to service businesses?

Yes. The hypothesis-testing loop applies to any business model. 'I believe that [type of customer] struggles with [problem] and will pay [price] for [solution]' is a hypothesis you can test through conversations regardless of what you are selling.

Can a solo founder do a Design Sprint?

A scaled-down version, yes. Google Ventures' sprint.team has resources for smaller teams. But the full 5-person, 5-day format requires dedicated participants. A solo founder is better served by running 5 quick usability sessions than a formal sprint.

Apply This in Your Checklist

Phase 1.1Define your customer and their problemPhase 1.2Test your idea with real people

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