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Quiz: Lean Testing Fundamentals

Test your understanding of designing small, honest, real-world lean tests with these review questions.

1. How does the chapter describe the relationship between lean validation and the lean startup philosophy introduced in Chapter 1?

  1. Lean validation replaces the lean startup philosophy with a purely financial forecasting method
  2. Lean validation only applies after a venture has already launched at full scale
  3. Lean validation is the direct, hands-on expression of that philosophy — testing key assumptions through small, fast, low-cost real-world experiments before committing significant time or money to building at full scale
  4. Lean validation is a synonym for the minimum viable offer defined in Chapter 6
Show Answer

The correct answer is C. Lean validation is the overall practice of testing a venture's key assumptions through small, fast, low-cost real-world experiments before committing significant time or money to building anything at full scale — the direct, hands-on expression of the lean startup philosophy Chapter 1 introduced.

Concept Tested: Lean Validation

See: Glossary

2. How does the chapter define a single "lean test"?

  1. One specific, bounded real-world trial designed to produce evidence about a single assumption, run cheaply enough that a "no" result doesn't hurt
  2. The overall practice of testing every assumption on the canvas at once
  3. A survey distributed to measure quantitative interest across many customers
  4. The final decision to persevere, pivot, or kill a venture idea
Show Answer

The correct answer is A. A lean test is each individual experiment within the broader practice of lean validation: one specific, bounded real-world trial designed to produce evidence about a single assumption, run cheaply enough that a "no" result doesn't hurt.

Concept Tested: Lean Test

See: Glossary

3. Jordan wants to test the grooming idea with the smallest possible offer that can still produce a real yes-or-no signal from a real customer, scoped specifically around what one test needs to learn. What is Jordan designing?

  1. A minimum viable offer, as defined in Chapter 6
  2. A validation test design document
  3. A direct post test
  4. A minimum testable iteration
Show Answer

The correct answer is D. A minimum testable iteration is the smallest possible version of an offer capable of producing a real yes-or-no signal from a real customer — narrower even than the minimum viable offer from Chapter 6, since it's scoped specifically around what one test needs to learn.

Concept Tested: Minimum Testable Iteration

See: Glossary

4. Instead of building a grooming-van business with a full fleet, Jordan starts by personally grooming dogs in customers' driveways. Which lean-test principle is Jordan applying?

  1. Manual before automated
  2. Service before product
  3. Pre-selling before building
  4. Validation test design
Show Answer

The correct answer is B. Service before product means testing an idea by delivering it as a hands-on, personally performed service first, even if the eventual vision is a packaged product — because a service can be offered tomorrow, while a product usually requires weeks or months of building first.

Concept Tested: Service Before Product

See: Glossary

5. Why does the chapter recommend booking appointments by text message and tracking them on paper rather than building a scheduling app first?

  1. Because manual before automated means doing the work by hand rather than building automation before the founder knows the underlying idea works at all
  2. Because apps are more expensive to test than services
  3. Because customers refuse to use scheduling software during a pre-sale offer
  4. Because automation is only appropriate after a kill decision
Show Answer

The correct answer is A. Manual before automated means doing the work by hand — a spreadsheet instead of software, a text message instead of an app — rather than building automation before you know the underlying idea works at all. It removes a way to hide from the truth by delaying the real test.

Concept Tested: Manual Before Automated

See: Glossary

6. Jordan asks a customer for a $10 deposit to hold a driveway grooming slot before the full service fully exists. Which principle is this move putting into practice?

  1. Service before product
  2. Manual before automated
  3. Pre-selling before building
  4. Test result debrief
Show Answer

The correct answer is C. Pre-selling before building means asking someone to actually pay, even a deposit, before the offer fully exists, because a stated interest costs a customer nothing while a real payment costs them something real. Jordan's $10 deposit is exactly this principle in action.

Concept Tested: Pre-Selling Before Building

See: Glossary

7. What is a "pre-sale offer," as defined in this chapter?

  1. A lean test in which a founder personally performs a service by hand for a real customer
  2. A lean test in which a founder asks a customer to pay, in full or as a deposit, for an offer before it's fully built or delivered
  3. A lean test in which a founder posts an offer to a public audience without one-on-one outreach
  4. A written plan of what a test will measure before it runs
Show Answer

The correct answer is B. A pre-sale offer is a lean test in which a founder asks a customer to pay — in full or as a deposit — for an offer before it's fully built or delivered, directly operationalizing pre-selling before building.

Concept Tested: Pre-Sale Offer

See: Glossary

8. Jordan personally grooms each dog by hand in the customer's driveway, with no van, no app, and no automation involved. Which lean test format does this exemplify, and which two principles does it combine at once?

  1. A direct post test — it operationalizes pre-selling before building alone
  2. A pre-sale offer — it operationalizes pre-selling before building alone
  3. Validation test design — it operationalizes none of the three rules directly
  4. Manual service delivery — it operationalizes both service before product and manual before automated at once
Show Answer

The correct answer is D. Manual service delivery is a lean test in which the founder personally performs the service by hand for a real customer, directly operationalizing both service before product and manual before automated at once — Jordan's driveway sessions are manual service delivery in its purest form.

Concept Tested: Manual Service Delivery

See: Glossary

9. A founder posts the grooming offer to a neighborhood app and measures the messages, sign-ups, and questions it generates, without reaching out to anyone individually. Which lean test format is this, and what is it best suited to measure?

  1. Manual service delivery — a format requiring one-on-one, hands-on service for each customer
  2. A pre-sale offer — a format that always requires collecting payment up front
  3. A direct post test — a lower-commitment format useful for testing message and demand before investing in individual conversations
  4. A kill decision — the choice to stop pursuing the venture idea entirely
Show Answer

The correct answer is C. A direct post test is a lower-commitment lean test in which a founder posts the offer directly to a real audience and measures genuine responses without any one-on-one outreach — useful for testing message and demand before investing in individual conversations.

Concept Tested: Direct Post Test

See: Glossary

10. Why does the chapter insist that a founder decide in advance exactly what would count as a "yes" and what would count as a "no" before running a lean test?

  1. So the result can't be reinterpreted after the fact to match what the founder hoped to see — this deliberate advance planning is validation test design
  2. Because customers refuse to participate in tests without a pre-announced threshold
  3. Because a test result debrief is legally required to reference a written threshold
  4. Because minimum testable iterations cannot be built without a threshold
Show Answer

The correct answer is A. Validation test design is the deliberate planning of exactly what a lean test will measure, what would count as a "yes," and what would count as a "no" — decided in advance, so the result can't be reinterpreted after the fact to match what the founder hoped to see.

Concept Tested: Validation Test Design

See: Glossary

11. What is a "test result," as this chapter defines it?

  1. The founder's interpretation of what a test's outcome means for the canvas
  2. The actual, factual outcome a lean test produced — how many people said yes, how many paid, how many ignored it — kept separate from any interpretation of what it means
  3. The threshold decided in advance for what would count as success
  4. The written plan for what a test will measure
Show Answer

The correct answer is B. A test result is the actual, factual outcome a lean test produced — how many people said yes, how many paid, how many ignored it entirely — kept separate from any interpretation of what that outcome means. That interpretation happens afterward, during the test result debrief.

Concept Tested: Test Result

See: Glossary

12. After a lean test runs, a founder sits down to review the actual test result against the threshold set during validation test design and decide what it means for the canvas. What is this step called?

  1. Assumption testing, as covered in Chapter 9
  2. A minimum testable iteration
  3. A direct post test
  4. A test result debrief
Show Answer

The correct answer is D. A test result debrief is the structured reflection, much like the interview debrief from Chapter 9, where a founder reviews the test result against the threshold set during validation test design and decides what it means for the canvas.

Concept Tested: Test Result Debrief

See: Glossary

13. Jordan runs three separate pre-sale offers, and each time fewer than the pre-set threshold of customers pay the deposit. Consistent with the chapter's guidance, what should Jordan do?

  1. Lower the pre-set threshold retroactively so the existing results count as a pass
  2. Switch immediately to manual before automated without changing anything else about the offer
  3. Treat this as validated learning and make a kill decision to stop pursuing this specific version of the idea, since continuing would mean ignoring the evidence
  4. Repeat the identical test indefinitely until the results eventually improve
Show Answer

The correct answer is C. A kill decision is the deliberate choice to stop pursuing a specific venture idea, or a specific version of it, because accumulated test results consistently fail to clear the threshold set in advance. It is not a personal failure — it is validated learning arriving through the cheapest and fastest path available.

Concept Tested: Kill Decision

See: Glossary