Front

What is an experiment?

Back

A research study in which available subjects are randomly assigned to two or more different treatments to compare how responses to the treatments differ.

Tags

CCSS.RI.11-12.4

CCSS.RI.7.4

CCSS.RI.8.4

CCSS.RI.9-10.4

CCSS.RI.9-10.4

Front

What is an observational study?

Back

A statistical study in which the conditions to be compared are already present in the subjects that are observed.

Tags

CCSS.HSS.IC.B.3

Front

What is a control group?

Back

In an experiment, a randomly selected group of subjects that gets no treatment, gets a placebo, or gets an established or standard treatment.

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

Front

What is a placebo?

Back

A fake treatment given to subjects of an experiment that appears to be the real treatment.

Tags

CCSS.L.11-12.4C

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C

CCSS.L.9-10.4C

Front

What is a response variable?

Back

In an experiment, the outcome to be measured.

Tags

CCSS.8.SP.A.4

Front

What is a treatment in the context of an experiment?

Back

A specific condition applied to the subjects in an experiment.

Front

What are experimental units?

Back

The individuals or items to which treatments are applied in an experiment.

Tags

CCSS.HSS.IC.B.3

Front

What is a lurking variable?

Back

A variable that is not included in the study but affects the outcome.

Front

What is random assignment?

Back

The process of randomly assigning subjects to different treatment groups to ensure each group is similar.

Front

What is a sample survey?

Back

A study that collects data from a subset of a population to make inferences about the entire population.

Tags

CCSS.HSS.IC.B.3