Say it like this
- Let's form a hypothesis and test it.
- My hypothesis is that the slowdown stems from the database query.
- We need to validate our hypothesis before shipping this feature.
Use it at work
Experiments
- Our hypothesis is that a shorter form will increase sign-ups.
- Let's write the hypothesis before we start the test.
Debugging
- My hypothesis is that the cache is stale.
- Let's test that hypothesis by clearing the cache.
Results
- The data supports our hypothesis.
- The hypothesis was wrong. Usage didn't change.
Don't say this
A hypothesis is valuable because it is testable; dismissing it dismisses a structured approach to problem-solving.
Practice
Try it
4 quick exercises
1. Your analytics show that mobile users drop off at checkout. You want to suggest an explanation for testing. Which sounds most professional?
2. Before we invest in refactoring, we should _______ that performance will improve by at least 20 percent.
3. Which sentence uses hypothesis incorrectly?
4. Rewrite using hypothesis: 'I think the API is slow because the database is not optimized. We should check this.'
Say it out loud
Phrase 1 of 3
"Let's form a hypothesis and test it."
We don't save your recording. The word check uses your browser's speech recognition.
More about hypothesis
Real examples(3)
- in a standup
"I have a hypothesis that the memory leak is caused by the event listener not being unsubscribed."
- in a code review
"Based on the test failure, my hypothesis is that the async function isn't awaiting the promise correctly."
- in a team meeting
"Our hypothesis is that users abandon the checkout flow because there are too many required fields."
More mistakes(2)
Handle with care. Often confused with 'theory' or 'guess'. A hypothesis is a testable prediction based on limited evidence, not a confirmed theory or casual guess.
- ✕I have a theory that the server is crashing.✓I have a hypothesis that the server is crashing due to memory exhaustion.
A hypothesis should be specific and testable. Use 'theory' only after you have strong evidence; use 'hypothesis' for an assumption you plan to test.
- ✕We hypothesized the new design would increase conversions by 50 percent without testing it.✓We hypothesized the new design would increase conversions, then ran an A/B test to validate it.
A hypothesis must be followed by testing; stating a hypothesis without a test plan is just guessing.
Other forms(3)
- hypothesis noun
"The hypothesis was confirmed by the user research data."
- hypotheses noun (plural)
"We tested three hypotheses about why the feature adoption was low."
- hypothesize verb
"We hypothesized that adding a progress bar would improve user retention."
Often used with(4)
- form a hypothesis · To create or propose a testable prediction: form, develop, or create a hypothesis.
- test a hypothesis · To carry out an experiment or analysis to validate or refute a hypothesis: test, validate, or verify.
- confirm/reject a hypothesis · The outcome after testing: confirm, validate, reject, or disprove a hypothesis.
- hypothesis-driven · An adjective describing a methodology or approach based on forming and testing hypotheses.
Similar words(3)
- assumption · Broader term; may or may not be testable. A hypothesis is always designed to be tested.
- prediction · Similar, but less formal in tech. Hypothesis implies a structured, evidence-based approach.
- supposition · More formal and abstract; hypothesis is more actionable in a tech context.
Opposites(3)
- fact
- proof
- conclusion
Questions(4)
- What does hypothesis mean in software engineering?
- In software engineering, a hypothesis is a testable prediction about why a problem occurs or how a change will affect the system. It is based on available evidence and designed to be validated or disproven through experimentation, measurement, or analysis. Unlike a casual guess, a hypothesis is structured and actionable.
- How do you use hypothesis in a sentence at work?
- Common examples include: 'My hypothesis is that caching will reduce response time,' 'We hypothesized that simplifying the interface would improve user engagement,' or 'Our hypothesis was confirmed by the A/B test results.' Always pair a hypothesis with a plan to test it.
- Is hypothesis formal or informal?
- Hypothesis is formal and professional in tone. It is appropriate in technical discussions, meetings, documentation, and code reviews. It signals a structured, scientific approach rather than guesswork, making it valuable in tech workplaces.
- What is the difference between hypothesis and theory?
- A hypothesis is a testable prediction you make before testing. A theory is an explanation that has been tested, validated, and widely accepted. Use hypothesis for ideas you are about to investigate; use theory for well-established explanations.
