Question

For which of these questions could a testable hypothesis be developed?

What is the best action movie?
Which theme park is the most fun?
What makes a baseball bounce?
what is the answer

Answer 1

Short answer: The third question ("What makes a baseball bounce?") is clearly testable as written. The first two are opinion-based (subjective) but can be made testable if you define measurable criteria for "best" or "most fun."

More detail and examples:

- What makes a baseball bounce?
- Testable as a scientific question. You can form hypotheses about causes and test them experimentally. Example hypotheses:
- H1: A baseball's rebound height increases as its internal pressure increases.
- H2: A baseball bounces less on softer surfaces than on harder surfaces.
- How to test (brief): Drop identical baseballs from a fixed height onto controlled surfaces, vary one factor at a time (pressure, surface hardness, temperature), measure rebound height for many trials, analyze differences statistically.

- What is the best action movie?
- As stated this is subjective and not directly testable. To test something you must operationalize "best" (e.g., highest average audience rating, highest critic score, highest physiological arousal, greatest box-office-adjusted satisfaction).
- Example testable hypothesis after operationalizing:
- H: Movie A will have a higher mean audience enjoyment score (1–10) than Movie B.
- How to test: recruit viewers, control viewing conditions, collect standardized enjoyment ratings or physiological measures, compare.

- Which theme park is the most fun?
- Also subjective but can be made testable by defining "fun" (visitor-reported fun score, repeat-visit rate, average smiles/minute measured by video, etc.).
- Example testable hypothesis:
- H: Visitors to Park X report higher average fun scores on a standardized survey than visitors to Park Y.
- How to test: survey representative samples of visitors after visits, use the same questionnaire, compare means with statistical tests.

Key point: For the first two you must define measurable, objective criteria for "best" or "fun" before you can form a testable hypothesis; the baseball question already asks about a physical cause and lends itself directly to experimental testing.