Experiment vs Observation

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 patterns or correlations.

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 effects.

Front

Why is random selection important in surveys?

Back

Random selection ensures that every individual in the population has an equal chance of being chosen, which helps to eliminate bias and makes the results more representative.

Tags

CCSS.HSS.IC.B.3

Front

What is a representative sample?

Back

A representative sample is a subset of a population that accurately reflects the characteristics of the larger group, allowing for generalizations to be made.

Tags

CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

Front

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

Back

A control group is used as a baseline to compare against the experimental group. It helps to isolate the effect of the independent variable.

Front

What is a variable in research?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types and can affect the outcome of an experiment or study.

Front

What is a dependent variable?

Back

The dependent variable is the outcome or response that is measured in an experiment, which is affected by changes in the independent variable.

Tags

CCSS.HSS.IC.B.3

Front

What is an independent variable?

Back

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

Front

What does it mean to have a correlation between two variables?

Back

A correlation indicates a relationship between two variables, where changes in one variable are associated with changes in another, but it does not imply causation.

Tags

CCSS.HSS.ID.C.9