Ch 4 extra Review

Front

What is the purpose of random assignment in experiments?

Back

To create roughly equivalent groups before treatments are administered.

Front

What is a simple random sample?

Back

A sample where every individual has an equal chance of being selected, such as selecting students randomly from a class.

Tags

CCSS.HSS.IC.B.3

Front

What is the largest population to which survey results can be generalized?

Back

All adult residents of the U.S.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is confounding in research?

Back

A situation where two variables are mixed together, making it difficult to determine the effect of each.

Front

What is a valid statistical question?

Back

A question that anticipates variability in the data, such as 'How long do students typically wait in line when getting lunch from the cafeteria?'.

Tags

CCSS.6.SP.A.1

Front

What is a population in statistics?

Back

The entire group of individuals or instances about whom we hope to learn.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a sample in statistics?

Back

A subset of the population selected for observation and analysis.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is bias in research?

Back

A systematic error that leads to an incorrect estimate of the effect of a treatment or intervention.

Front

What is a response variable?

Back

The outcome that is measured in an experiment to see if it is affected by the treatment.

Tags

CCSS.HSS.IC.B.3

Front

What is the placebo effect?

Back

A phenomenon where participants experience changes in their condition simply because they believe they are receiving treatment.

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1