A Researcher Plans to Conduct a Study to Compare Two

question 53

Multiple Choice

A researcher plans to conduct a study to compare two groups.Based on previous research,she anticipates a medium effect size.She does a power analysis with alpha level of .05.This power analysis tells her

• A) the t-test outcome and degrees of freedom she should expect.
• B) Cohen's d for her study.
• C) the sample size she will need to observe a statistically significant finding.
• D) the practical significance of her research.

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