Biotechnology for Health (Biomedical Innovations)
Unit 7: Problems 7-8: Forensic Autopsy & Independent ProjectBI 7.1Biomedical Innovation: forensics & independent research

Frame a research question + methods

Turn a broad interest into one specific, measurable, testable question and a method that can actually answer it.

Builds on (2 levels back)inferred · med confidence
  • Identifying what you change vs. what you measure: A testable question names a variable you change and a variable you measure; you must be able to tell them apart first.
  • Narrowing a broad topic to one idea: A specific question comes from cutting a wide interest down to a single, focused claim you can actually check.

Prerequisites are inferred: pending teacher review.

Re-learn the skill with worked practice and clear examples.

A good research question is specific (one clear focus), measurable (the answer can be counted or scored), and testable (a study could actually answer it). The method is then chosen to fit the question.

Step 1: Apply the three checks
Ask: Is it about one specific thing? Can the answer be measured as a number or clear category? Could I actually run a study to find out? A 'no' on any check means the question needs work.
Step 2: Match a method
Methodology is the plan for answering the question. The method must fit: a question about a measured effect needs a comparison (a group that changes vs. one that does not), not just an opinion survey.
Step 3: Watch the trap
Yes/no opinion questions ('Is exercise good?') and huge topics ('How does diet affect health?') are not testable as written: they are too broad or not measurable.
Practice

Which is the strongest research question: specific, measurable, and testable?

Reviewed
  1. A.Is exercise good for people?
  2. B.How does 20 minutes of daily walking affect resting heart rate over four weeks?
  3. C.Why is health important?
  4. D.Does everyone like to exercise?
Show the worked solution ▾

Answer: B. How does 20 minutes of daily walking affect resting heart rate over four weeks?

  1. Step 1: Check each one: Run all three tests: specific focus, measurable answer, and possible to study.
  2. Step 2: Find the one that passes all three: The walking question names one specific activity, a measurable outcome (resting heart rate), and a setup you could actually run.

Why it's right: It focuses on one specific activity, has a measurable outcome (resting heart rate over four weeks), and could be tested with a real study.

Why the others miss:
  • A: 'Is exercise good?' is a broad opinion question with no measurable outcome.
  • C: 'Why is health important?' is too broad and cannot be measured.
  • D: Asking if everyone 'likes' exercise is an opinion, not a measurable test.

Aligned to BI research: question quality · reading level ~grade 9

Where you'd see this
  • A science-fair mentor sends a student back to rewrite 'Is pollution bad?' until it names a measurable pollutant and effect.
Video library
Watch: Frame a research question + methods
How to Develop a STRONG Research Question | Scribbr 🎓
Scribbr · ~5 min
Guided notes

Fill these in as you work through the lesson.

Big idea: A good research question is specific, measurable, and testable: and it points to a method that could actually answer it.
Key terms: write the meaning
  • Research question (the one thing the study is trying to answer):  
  • Methodology (the plan for how you will answer it):  
  • Variable (something that can change or be measured):  
  • Measurable (can be turned into a number or clear category):  
The rule

A strong research question is   (about one clear thing),   (its answer can be counted or scored), and   (you could actually run a study to check it).

Check yourself
  1. What changes when you turn 'Is exercise good?' into a measurable question? 
  2. Why does naming the variable you measure make a question testable? 
  3. How should the method match the question instead of being chosen first? 
Work one example

Rewrite the broad topic 'sleep and grades' into one research question that is specific, measurable, and testable, then name the one method you would use to answer it.