When using a t-test to compare
the means from two samples of data, a researcher finds a significant
difference. She decides to also determine the effect size of the result. For
what reason would she do this?

Question

Answer

To double-check the result

Answer

To determine the power of the statistical test

Answer

To determine the probability of making an error if she rejects the null hypothesis

Answer

The see whether the statistical result is also reasonably meaningful in practical terms

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When using a t-test to compare the means from two samples of data, a researcher...

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