Question 1

What is the purpose of the control group in an experiment?

Accepted Answer

The control group remains unchanged to compare with the experimental group

Answer

The control group is the independent variable

Answer

The control group changes with the independent variable

Answer

The control group receives the experimental procedure

Question 2

What does an alternative hypothesis affirm?

Accepted Answer

The existence of an observed phenomenon

Answer

The experiment will fail

Answer

The absence of a difference

Answer

The results will be inconclusive

Question 3

What is the independent variable in an experiment?

Accepted Answer

The variable that is changed or manipulated

Answer

The variable that is unrelated to the experiment

Answer

The variable that remains constant

Answer

The variable that is measured as an outcome

Question 4

What is the definition of a fair test in experimental research?

Accepted Answer

An experimental design where only one factor is changed while keeping everything else the same

Answer

An experiment that tests multiple variables at once

Answer

A test that ensures random selection of subjects

Answer

A test that guarantees the results will always be valid

Question 5

What is the purpose of controlled variables in an experiment?

Accepted Answer

To keep conditions constant and prevent other factors from affecting the results

Answer

To change the conditions to see different outcomes

Answer

To vary the dependent variable for better results

Answer

To act as the experimental group

Question 6

What does a null hypothesis state?

Accepted Answer

That there is no effect or no difference in the experiment

Answer

That the experimental results will always be significant

Answer

That there is a clear relationship between variables

Answer

That the experiment has multiple outcomes

Question 7

In an experiment, what is the dependent variable?

Accepted Answer

The variable that changes due to the independent variable

Answer

The variable that is manipulated

Answer

The variable that is controlled

Answer

The variable that remains constant

Question 8

What is an extraneous variable?

Accepted Answer

A variable that may affect the dependent variable but is not being studied

Answer

A variable that is intentionally manipulated

Answer

A variable that will definitely change the outcome

Answer

A variable that is kept constant

Question 9

What is a hypothesis in scientific research?

Accepted Answer

An educated guess based on prior knowledge and observations

Answer

A conclusion drawn after the experiment is finished

Answer

A proven fact that requires no testing

Answer

A random guess without any basis

Question 10

What is the role of the experimental group in an experiment?

Accepted Answer

To receive the experimental procedure and be tested against the control group

Answer

To remain unchanged and serve as a comparison

Answer

To measure the dependent variable only

Answer

To manipulate the independent variable without testing

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