Ch 12 Practice

Front

What is a Response Variable?

Back

The factor that measures the outcome of an experiment or study.

Front

What is an Observational Study?

Back

A study where the researcher observes subjects without manipulating any variables.

Front

What is an Experiment?

Back

A study where the researcher manipulates one or more variables to determine their effect on a response variable.

Front

What does it mean to block in an experiment?

Back

To group subjects based on a certain characteristic (like engine size) to reduce variability in the response variable.

Front

What is a Placebo?

Back

A substance with no therapeutic effect used as a control in testing new drugs.

Front

What is the purpose of a Control Group?

Back

To provide a baseline for comparison against the experimental group.

Front

What is the Explanatory Variable?

Back

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

Front

What is the difference between a Treatment and a Control?

Back

A treatment is the condition applied to the experimental group, while a control is the condition applied to the control group.

Front

What is a Confounding Variable?

Back

A variable that influences both the dependent variable and independent variable, leading to a false association.

Front

What is Random Assignment?

Back

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