Multiple Choice
What are two main purposes for using repetition when conducting experiments?
4. BONUS: Lab Techniques and Procedures
Experimental Error
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In the context of experimental error, what does it mean to say that experimental conditions are controlled?
A
All variables are kept constant except the one being tested.
B
The experiment is repeated multiple times to ensure accuracy.
C
The experiment is conducted without any measurement errors.
D
The results are adjusted to match the expected outcome.
Verified step by step guidance1
Understand that controlling experimental conditions means maintaining all variables constant except for the one being tested. This ensures that any observed changes in the experiment can be attributed to the variable being tested.
Recognize that repeating the experiment multiple times is crucial for ensuring accuracy and reliability of the results. This helps to account for any random errors and increases confidence in the findings.
Acknowledge that conducting the experiment without measurement errors is ideal, but in practice, it is important to minimize these errors as much as possible through careful calibration and use of precise instruments.
Note that adjusting results to match expected outcomes is not a part of controlling experimental conditions. Instead, results should be reported as observed, and any discrepancies should be analyzed to understand potential sources of error.
In summary, controlled experimental conditions focus on isolating the variable of interest, ensuring repeatability, and minimizing errors to obtain reliable and valid results.
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