#1
What is the main purpose of a control group in an experiment?
To provide a basis for comparison
To introduce a variable
To ensure randomness
To eliminate biases
#2
What is the primary goal of the scientific method?
To prove personal beliefs
To establish absolute truths
To provide a systematic approach for investigating natural phenomena
To ignore empirical evidence
#3
Which of the following is a key characteristic of a hypothesis?
It is proven and accepted as a fact
It is a question that cannot be tested
It is a testable and falsifiable statement
It is based solely on opinions
#4
In the scientific method, what comes after the formulation of a hypothesis?
Data analysis
Experimentation
Drawing conclusions
Observation
#5
What is the role of a control variable in an experiment?
To change during the experiment
To remain constant
To be manipulated intentionally
To affect the dependent variable
#6
What is the significance of statistical significance in experimental results?
It ensures the experiment was conducted with a large budget
It indicates the importance of the experiment
It suggests that the results are likely not due to random chance
It emphasizes the need for further experiments
#7
What is the difference between a theory and a hypothesis in scientific terms?
They are synonyms and can be used interchangeably
A theory is broader and more comprehensive than a hypothesis
A hypothesis is more well-established than a theory
There is no distinction between them
#8
What is the role of a blind experiment in scientific research?
To increase the visibility of the results
To eliminate bias by keeping participants unaware of certain details
To intentionally introduce bias for testing purposes
To focus solely on the dependent variable
#9
In the context of experimental design, what is a confounding variable?
A variable that is manipulated intentionally
A variable that is kept constant throughout the experiment
An unintended variable that may affect the dependent variable
A variable that is irrelevant to the experiment
#10
Which of the following is a primary goal of peer review in scientific research?
To promote competition among researchers
To validate research findings
To keep research confidential
To discourage collaboration
#11
Which of the following best describes the concept of falsifiability in scientific inquiry?
The ability of a hypothesis to be proven true
The potential for a hypothesis to be proven false
The certainty that a hypothesis is correct
The complexity of a hypothesis
#12
Why is it important to replicate scientific experiments?
To increase the complexity of the study
To validate the initial findings and ensure reliability
To reduce the sample size
To decrease the external validity of the study
#13
What is the primary purpose of the peer-reviewed publication process in scientific research?
To keep research findings confidential
To share findings with the general public
To validate research quality and accuracy
To promote competition among researchers
#14
What distinguishes a scientific law from a scientific theory?
Laws are more tentative than theories
Theories explain while laws describe observed phenomena
Laws are limited to specific conditions, while theories are universal
The terms are interchangeable and have no distinction
#15
In the context of experimental design, what is the purpose of randomization?
To make the experiment more predictable
To eliminate the need for a control group
To ensure that each participant has an equal chance of being in any experimental group
To introduce bias intentionally
#16
Why is it important for scientific experiments to be reproducible?
To limit the applicability of the findings
To ensure that the experiment is never repeated
To allow other researchers to verify the results
To reduce the need for peer review