Scientific Method Advanced Quiz 1
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Advanced Quiz 1
1. Which of the following best describes the principle of falsifiability in science?
A hypothesis must be able to be proven wrong by evidence
A hypothesis must be accepted by all scientists
A hypothesis must always be correct
2. What is the main purpose of peer review in the scientific process?
To ensure the validity and reliability of scientific findings
To allow only famous scientists to publish
To speed up publication
3. Which of these is a key feature of a well-designed experiment?
It includes randomization and controls to reduce bias
It uses as few trials as possible
It avoids publishing results
4. What is the difference between a scientific law and a scientific theory?
A law describes what happens; a theory explains why it happens
A theory is always correct; a law is not
There is no difference
5. Why is reproducibility important in scientific experiments?
It allows others to verify results independently
It makes experiments faster
It ensures only one person can get the same result
6. What is a double-blind experiment?
Neither the participants nor the experimenters know who is in the control or experimental group
Only the participants are unaware of the group assignments
Only the experimenters are unaware of the group assignments
7. What is the role of statistical analysis in the scientific method?
To determine if results are significant and not due to chance
To make the experiment more complicated
To avoid collecting data
8. Which of the following is an example of a confounding variable?
A factor not controlled for that could influence the outcome
The independent variable
The dependent variable
9. What is meant by “operational definition” in an experiment?
A clear, precise way to measure or define a variable
A guess about what will happen
A summary of results
10. Why is it important to publish negative results?
They help prevent duplication of work and refine scientific understanding
They should always be hidden
They are less valuable than positive results
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