laboratory experiments

Answer 1

highest level over all variables

Question 2

what type of environment does a laboratory experiment take place in?

Answer 2

controlled environment

Question 3

why does a laboratory experiment take place in a controlled environment?

Answer 3

all extraneous variables can be controlled

Question 4

why is it important that the extraneous variables to be controlled?

Answer 4

any changes in the dependant variable can be said to be due to changes in the independent variable