Multiple Choice
In a controlled experiment, how many independent variables can be tested at one time?
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
What are two main purposes for using repetition when conducting experiments?
A
To reduce the time needed for data collection and analysis.
B
To ensure the experiment is more complex and challenging.
C
To allow for more variables to be tested simultaneously.
D
To increase the reliability of results and identify any anomalies.
Verified step by step guidance1
Understand the concept of repetition in experiments: Repetition involves conducting the same experiment multiple times to verify the consistency of the results.
Identify the purpose of increasing reliability: By repeating experiments, scientists can confirm that the results are consistent and not due to random chance or experimental error.
Recognize the role of identifying anomalies: Repetition helps in spotting any outliers or anomalies in the data, which might indicate errors or unexpected factors affecting the experiment.
Consider the importance of statistical significance: Repeated trials provide a larger data set, which can be analyzed to determine the statistical significance of the results.
Acknowledge the elimination of bias: Repetition helps in minimizing biases that might occur in a single trial, ensuring that the results are more objective and reliable.
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