Quick check 1 of 2 · Hypotheses
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Level I · Module 1 of 10
Thinking Like a Quant
You do not need to predict the next market move to think like a researcher. Start by making a claim precise enough to be wrong, then ask what evidence would change your mind.
What you will be able to do
- Translate a narrative into a testable hypothesis.
- Separate observations, assumptions, and conclusions.
- Choose a meaningful benchmark.
- Communicate uncertainty without becoming indecisive.
- Distinguish predictive usefulness from a causal explanation.
Section 1 of 5 · Read, explore, check
Testable claims and falsifiable predictions
A narrative gives an intuitive reason something might happen: “Investors panic after large losses, so a rebound must follow.” A hypothesis specifies what you will measure. Define the market universe, the information available when a decision is made, the signal, the outcome, the horizon, and a comparison. “Must” becomes a claim about an average or probability that data can challenge.
For example: among a defined stock universe, compare next-day total returns after a prior daily loss of at least 3% with a preselected benchmark during a stated historical period. Decide these details before examining results. If you keep redefining “large,” “rebound,” or the sample until the result looks attractive, the question has changed to fit the answer.
A testable statement is not automatically a good strategy. The initial goal is more modest: make clear what would count as supporting or contradicting evidence. You can reject a vague proposal without claiming the underlying idea is false.
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Keep this in mind: A useful hypothesis names an observable outcome and a fair way to compare it.
Make the idea stick
Two quick checks before you move on.
Choose an answer to see feedback and the reasoning immediately. Getting one wrong is a chance to inspect the distinction, not a reason to stop.
Quick check 2 of 2 · Hypotheses
A researcher changes “large loss” from 3% to 2.7% only because the result improves. What should the review record?
Additional practice · independent of assessment eligibility
Write a research ticket
A desk says ‘bad opening sessions always bounce.’ Write three sentences defining a test, a comparison, and evidence that could weaken the claim.
Your draft stays in this page's memory. This is self-review, not automatic grading or a project submission.
Show a hint
Name a universe, observable event, timing, horizon, and benchmark before debating the story.