196k views
2 votes
Which of the following statements best describes a controlled experiment? a it tests the effect of a single independent variable b it avoids the use of variables c it shows the effect of a dependent variable on an independent variable d it eliminated the need for dependent variables

2 Answers

1 vote

Answer:

A: It tests the effect of a single independent variable.

Step-by-step explanation:

User Romanos
by
8.3k points
7 votes

Answer:

a. it tests the effect of a single independent variable.

Step-by-step explanation:

This is the best definition of a controlled experiment. A controlled experiment is a scientific test that tests the effect of a single independent variable at a time. This variable is usually adjusted to see its effects on the system that is being studied. Moreover, a scientist performing this kind of experiment has to hold the variable constant to minimize or stabilize its effects.

User Jason Cook
by
7.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.