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Independent & Dependent Variables Quiz

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Questions and Answers

What is an example of an independent variable in an experiment testing the effect of a vitamin on life expectancy?

Amount of vitamin (correct)

Type of subjects

Life span

Duration of experiment

What is the dependent variable in the vitamin experiment?

Life span

In the study of a drug's impact on cancer, what is the independent variable?

Duration of study

Type of cancer

Administration of the drug (correct)

Impact on cancer

What is the dependent variable in the drug's impact on cancer study?

<p>Impact the drug has on cancer</p> Signup and view all the answers

Study Notes

Independent Variables

Independent variables are manipulated or changed by researchers in an experiment to observe effects on dependent variables.
In an experiment testing vitamins for life expectancy, the independent variable is the dosage of the vitamin administered to participants.
Administration of a drug in a cancer study is another example of an independent variable.

Dependent Variables

Dependent variables are outcomes measured in an experiment that are influenced by changes in independent variables.
For the vitamin life expectancy experiment, the dependent variable is the resulting life span of the subjects.
In the cancer drug study, the dependent variable is the effect of the drug on the progression of cancer.

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Description

This quiz provides flashcards to help you understand independent and dependent variables in scientific experiments. Through examples and definitions, you will learn how these variables interact and influence each other. Perfect for students looking to grasp these fundamental concepts in science.