Unformatted text preview: That is, what is the definition of a “positive control”? The definition of a “negative control”? Negative controls are experifments that are designed to specifically rule out the controbution of extraneous variables. That is, to determine what is not the cause of the result. Positive controls are experiments that verify that the experimental techniques actually work the way they are supposed to, and to reassure investigators that they are measuring exactly what they think they are measuring....
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- Spring '08
- cell biology, observed result, negative control, true scientific investigation