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A cognitive psychologist finds that 40 participants using a new mnemonic strategy recall more words than a control group. Briefly explain how the researcher would apply the fundamental purpose of null hypothesis testing to this specific finding.
Question: A cognitive psychologist finds that 40 participants using a new mnemonic strategy recall more words than a control group. Briefly explain how the researcher would apply the fundamental purpose of null hypothesis testing to this specific finding.
Sample answer: The researcher would apply the formal framework of null hypothesis testing to decide if the higher recall scores reflect a genuine relationship in the broader population or if the difference is simply a misleading result caused by random sampling error.
Key points:
- Apply null hypothesis testing as a formal framework for decision making.
- Decide if there is a genuine relationship in the broader population.
- Consider if the result is simply a misleading result due to random sampling error.
Rubric: The answer should describe applying the framework to decide between a genuine population relationship and random sampling error.
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Research Methods in Psychology - 4th American Edition @ KPU
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