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Define practical significance in the context of psychological research and explain how it differs from a result simply being statistically significant.
Question: Define practical significance in the context of psychological research and explain how it differs from a result simply being statistically significant.
Sample answer: Practical significance refers to the real-world importance, usefulness, or meaningfulness of a research finding. It differs from statistical significance because a result can be statistically significant but still lack practical significance if the observed effect is trivial or too weak to have any meaningful impact in everyday life or practice.
Key points:
- Defines practical significance as real-world importance, usefulness, or meaningfulness.
- States that a result can be statistically significant but simultaneously lack practical significance.
- Explains that this occurs when an effect is too trivial or weak to have a meaningful impact in everyday practice.
Rubric: The response must accurately define practical significance and explicitly state that a statistically significant result can lack practical significance if the effect is trivial or weak.
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Research Methods in Psychology - 4th American Edition @ KPU
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