Reset Help independent 1. The type of test that changes only one variable at a t

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Reset Help independent 1. The type of test that changes only one variable at a time in order to isolate the results is known as a single-blind controlled dependent negative control positive control double-blind 2. The one variable that is manipulated by a scientist as a potential cause in an experiment is the variable 3. The variable is the factor a scientist observes to see the effect of the change made. 4. A establishes a base line for an experiment. 5. A is a group in which no response is expected. 6. A is a group in which a known response is expected. 7. In a control group experiment, the researchers-but not the participants-know who receives the treatment and who does not, to eliminate subjective bias. 8. In a experiment, neither the participants nor the researchers know who receives the treatment and who does not.

Explanation / Answer

1. controlled

2. independent

3. dependent

4. control group

5. negative control

6. positive control

7. single blind

8. double blind

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