Observation VS Experiment

Front

What is the main difference between an observational study and an experiment?

Back

An observational study involves observing subjects without manipulating any variables, while an experiment involves manipulating one or more variables to determine their effect on a dependent variable.

Front

What type of study is being conducted when researchers compare the health of students who walk to school with those who ride the bus?

Back

Observational Study

Front

In a study where participants are randomly assigned to different conditions, what type of research is being conducted?

Back

Experiment

Front

What is an example of an observational study?

Back

Comparing the rate of leukemia in children living near high-tension wires to those living farther away.

Front

What is the purpose of random assignment in experimental research?

Back

To ensure that each participant has an equal chance of being assigned to any group, which helps control for confounding variables.

Front

What type of research method is used when a researcher observes the behavior of children after watching different types of television programs?

Back

Experimental Research

Front

What is a key characteristic of an observational study?

Back

The researcher does not intervene or manipulate any variables.

Front

Why might a researcher choose to conduct an observational study instead of an experiment?

Back

When it is unethical or impractical to manipulate variables, or when the researcher wants to study natural behaviors.

Front

What is a dependent variable in an experiment?

Back

The variable that is measured or observed in response to changes in the independent variable.

Front

What is an independent variable in an experiment?

Back

The variable that is manipulated or changed by the researcher to observe its effect on the dependent variable.