When an Experiment Produces Null Results

question 49

Multiple Choice

When an experiment produces null results

• A) it is possible that the experimenter did not use a valid manipulation of the independent variable.
• B) it shows that the independent variable manipulation produced a change in the dependent variable.
• C) it shows that the dependent variable had no effect on the independent variable.
• D) it is possible that the effect of the independent variable occurred by chance.

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Definitions:

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A failure to behave with the level of care that someone of ordinary prudence would have exercised under the same circumstances.

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