SR Units 5 Final Review

Front

What is the placebo effect?

Back

The placebo effect is when members of the control group believe they notice a change without being given the real treatment (or independent variable).

Front

What is a lurking variable?

Back

A lurking variable is an outside influence that can affect the outcome of an experiment, such as whether or not the subject was talking to a passenger in the car during a study on cell phone use while driving.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is manipulated or changed in an experiment, such as the egg drop devices in an egg drop experiment.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the outcome that is measured in an experiment, such as whether the egg smashes or stays intact in an egg drop experiment.

Front

What is a population in a survey?

Back

The population in a survey refers to the entire group that is being studied, such as all CIAA students in Zoie's survey.

Front

What is the difference between an experimental group and a control group?

Back

The experimental group receives the treatment or independent variable, while the control group does not receive the treatment and is used for comparison.

Front

What is the role of a hypothesis in an experiment?

Back

A hypothesis is a testable prediction about the relationship between variables in an experiment.

Front

What is a sample in research?

Back

A sample is a subset of the population that is selected for the study, used to make inferences about the entire population.

Front

What is the significance of random sampling?

Back

Random sampling ensures that every member of the population has an equal chance of being selected, which helps to reduce bias in the results.

Front

What is a variable in an experiment?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.