review observational &experimental survey

Front

What is an experimental study?

Back

A research method where the researcher manipulates one variable to determine its effect on another variable, often involving a control group.

Front

What is an observational study?

Back

A research method where the researcher observes subjects in their natural environment without manipulation.

Tags

CCSS.RI.11-12.7

CCSS.RI.9-10.7

CCSS.RL.11-12.7

CCSS.RL.8.7

CCSS.RL.9-10.7

Front

Define 'population' in research.

Back

A population consists of all subjects (human or otherwise) that are being studied.

Front

What is a census in research?

Back

A census involves collecting data from every member of the population.

Front

What is a sample survey?

Back

A sample survey collects data from a subset of the population to make inferences about the whole population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the response variable?

Back

The variable we expect to change in response to the explanatory variable.

Tags

CCSS.8.SP.A.4

Front

What is the explanatory variable?

Back

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

Tags

CCSS.HSS.IC.B.3

Front

What is the difference between independent and dependent variables?

Back

Independent variables are manipulated by the researcher, while dependent variables are measured to see how they are affected.

Front

What is random assignment in experiments?

Back

Random assignment is the process of randomly assigning participants to different groups to ensure each group is similar.

Front

What is a control group?

Back

A control group is a group in an experiment that does not receive the treatment or intervention being tested.