Experimental Design 1

What is the first step in the scientific method according to the key terms?

• Hypothesis

• Observation

• Conclusion

• Data

Which term refers to the factor that is changed or controlled in a scientific experiment?

• Dependent Variable

• Independent Variable

• Data

• Conclusion

What is the term for the information collected during an experiment?

• Hypothesis

• Data

• Groups

• Variables

What is the first step in many experiments?

• Conclusion

• Observation

• Hypothesis

• Analysis

What does making an observation involve?

• Using your imagination

• Using your senses

• Using your emotions

• Using your memory

What is the independent variable in an experiment?

• The variable that is purposely manipulated or changed

• The variable that is observed or measured

• The variable that is kept constant

• The variable that is ignored

In an experiment, how many groups do scientists typically divide their subjects into?

• One

• Two

• Three

• Four

What is the main difference between the experimental group and the control group in an experiment?

• The experimental group receives the treatment, and the control group does not.

• The control group receives the treatment, and the experimental group does not.

• Both groups receive the treatment.

• Neither group receives the treatment.

Why is it important to have a control group in an experiment?

• To ensure that the experiment is more expensive.

• To have a group that receives double the treatment.

• To compare results and determine the effect of the treatment.

• To confuse the participants.

What is the purpose of using a data table in the context of the image (see slide 9).

• To create a pie chart

• To create a bar graph

• To write a report

• To calculate percentages