warm up quiz question .2

Question 1

What are the defining characteristics of a controlled experiment?

Answer 1

all extraneous variables are held constant so that they can’t influence the result

Question 2

What are the defining characteristics of an observational study?

Answer 2

Behaviors are observed in a natural environment
The participation of the researcher varies
More reliable data is collected

Question 3

What are some advantages of a controlled experiment?

Answer 3

allows researchers to determine cause and effect between two variables

Question 4

Can an observational study give us information about causation? Explain.

Answer 4

Observational studies cannot establish causation. We have to run a True Science Experiment in order to establish causality.

Question 5

Do controlled experiments have to be done in a laboratory? Explain.

Answer 5

no, but they must be able to avoid extraneous variables.