Multiple Choice
Which of the following best describes how data tables can support or refute a scientific prediction in an experiment?
4. BONUS: Lab Techniques and Procedures
Experimental Error
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Which of the following would not be considered a preanalytical error in a laboratory setting?
A
Improper storage of reagents
B
Calculation error during data analysis
C
Contamination of samples during collection
D
Incorrect labeling of samples
Verified step by step guidance1
Understand the concept of preanalytical errors: These are mistakes that occur before the actual analysis of samples in a laboratory setting. They typically involve issues with sample collection, handling, and preparation.
Identify the options provided: Improper storage of reagents, calculation error during data analysis, contamination of samples during collection, and incorrect labeling of samples.
Evaluate each option: Consider whether each option occurs before the analysis phase. Improper storage of reagents, contamination during collection, and incorrect labeling all occur before analysis and can affect the sample's integrity.
Recognize that calculation errors during data analysis occur after the sample has been prepared and analyzed, thus they are not preanalytical errors.
Conclude that the correct answer is the option that does not fit the definition of a preanalytical error, which is the calculation error during data analysis.
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