Describe the frequent misinterpretation of the -value and state its actual definition.
Question: Describe the frequent misinterpretation of the -value and state its actual definition.
Sample answer: A frequent misinterpretation of the -value is that it represents the probability that the null hypothesis is true. In reality, the -value is defined as the probability of obtaining the observed sample result if the null hypothesis were true.
Key points:
- The -value is often misinterpreted as the probability that the null hypothesis is true.
- The actual definition of the -value involves the probability of obtaining the observed sample result.
- The definition assumes that the null hypothesis is true.
- The -value is not a measure of the truth of the hypothesis itself.
Rubric: Full credit is awarded if the student correctly identifies both the frequent misinterpretation and the actual definition of the -value.
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Research Methods in Psychology - 4th American Edition @ KPU
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Describe the frequent misinterpretation of the -value and state its actual definition.
Diagnose the conceptual error in the student's conclusion and explain what the -value of .04 actually means in this context.
If a researcher obtains a sample result and wants to report the -value correctly, how should they phrase the definition of this -value without claiming it measures the truth of the null hypothesis?