Mastering Experimental Design

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Which variable is manipulated in an experiment?

Qualitative variable

Independent variable (correct)

Control variable

Dependent variable

Which variable changes as a result of manipulating the independent variable?

Dependent variable (correct)

Control variable

Independent variable

Qualitative variable

What type of values can be collected to measure the results of an experiment?

Both quantitative and qualitative values (correct)

Quantitative values

Control values

Qualitative values

In the example experiment with plants, what was measured each week for six months?

Plant's height Signup and view all the answers

What was the purpose of the experiment conducted by the pharmaceutical company?

To test the medication's effectiveness Signup and view all the answers

Which one of the following is the definition of accuracy?

How close the values collected are to the real value Signup and view all the answers

Which one of the following is the definition of precision?

How close all measurements are to one another Signup and view all the answers

What is the purpose of the scientific method?

To test hypotheses Signup and view all the answers

Which step in the experimental design process involves defining the variables?

Step 1 Signup and view all the answers

What is the dependent variable in an experiment?

The variable that is measured Signup and view all the answers

Which variable is manipulated in an experiment?

Independent variable Signup and view all the answers

Experimental design is used to test a hypothesis through a series of steps in order to create controlled conditions for an experiment. What is the purpose of creating controlled conditions?

To limit the exposure to outside interference Signup and view all the answers

What is the difference between a scientific theory and a scientific law?

A scientific theory explains why things occur after significant repeated experiments, while a scientific law is a pattern typically established through an equation Signup and view all the answers

What is the outcome of an experimental investigation conducted through experimental design?

To form a conclusion based on the hypothesis Signup and view all the answers

What do scientists need to have in order to design a good experiment?

Background knowledge in the area of the experiment Signup and view all the answers

Mastering Experimental Design

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Questions and Answers

Which variable is manipulated in an experiment?

Which variable changes as a result of manipulating the independent variable?

What type of values can be collected to measure the results of an experiment?

In the example experiment with plants, what was measured each week for six months?

What was the purpose of the experiment conducted by the pharmaceutical company?

Which one of the following is the definition of accuracy?

Which one of the following is the definition of precision?

What is the purpose of the scientific method?

Which step in the experimental design process involves defining the variables?

What is the dependent variable in an experiment?

Which variable is manipulated in an experiment?

Experimental design is used to test a hypothesis through a series of steps in order to create controlled conditions for an experiment. What is the purpose of creating controlled conditions?

What is the difference between a scientific theory and a scientific law?

What is the outcome of an experimental investigation conducted through experimental design?

What do scientists need to have in order to design a good experiment?

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