Front

What is an observational study?

Back

An observational study is a type of research where the researcher observes and records behavior or outcomes without manipulating any variables. It aims to identify correlations or patterns.

Front

What is an experiment?

Back

An experiment is a research method where the researcher manipulates one or more variables to determine their effect on a dependent variable, allowing for cause-and-effect conclusions.

Front

What is the main difference between an observational study and an experiment?

Back

The main difference is that in an observational study, the researcher does not intervene or manipulate variables, while in an experiment, the researcher actively manipulates variables to observe outcomes.

Front

What is a variable in research?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types. In research, variables are what researchers measure and manipulate.

Front

What is a dependent variable?

Back

A dependent variable is the outcome or response that is measured in an experiment. It is affected by changes in the independent variable.

Front

What is an independent variable?

Back

An independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Tags

CCSS.HSS.IC.B.3

Front

What does it mean to randomly select participants in a study?

Back

Random selection means choosing participants in such a way that every individual has an equal chance of being selected, which helps to eliminate bias.

Front

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

Back

A control group serves as a baseline to compare the effects of the independent variable. It helps to isolate the effect of the treatment being tested.

Front

What is a confounding variable?

Back

A confounding variable is an outside influence that can affect the results of an experiment, potentially leading to incorrect conclusions.

Front

What is correlation?

Back

Correlation is a statistical measure that describes the extent to which two variables change together. It does not imply causation.

Tags

CCSS.HSS.ID.C.9