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首页> 外文期刊>Communication Methods and Measures >Post Hoc Power, Observed Power, A Priori Power, Retrospective Power, Prospective Power, Achieved Power: Sorting Out Appropriate Uses of Statistical Power Analyses
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Post Hoc Power, Observed Power, A Priori Power, Retrospective Power, Prospective Power, Achieved Power: Sorting Out Appropriate Uses of Statistical Power Analyses

机译：事后力量，观察力量，先验力量，回顾力量，预期力量，已实现力量：对统计力量分析的适当使用进行分类

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摘要

This brief note hopes to dispel some apparent confusions concerning statistical power, especially ones stemming from power computations based on treating an observed sample effect size as the population effect of interest ("post hoc," "observed," or "retrospective" power). Some after-the-fact power analyses can be useful for presentation purposes but only when based on population effect sizes of independent interest. It is recommended that labels such as "post hoc power," "observed power," "retrospective power," and "a priori power" be avoided, that reported power figures be accompanied by specification and justification of the values used to compute power, and that results characteristically be described with effect sizes, confidence intervals, and p values.
机译：本简要说明希望消除一些关于统计功效的明显混淆，尤其是那些源自将观察到的样本效应量视为感兴趣的种群效应（“事后”，“观察”或“追溯”功效）的功效计算所引起的混淆。某些事后能力分析可用于演示目的，但仅当基于独立关注的总体效应大小时才有用。建议避免使用诸如“事后功率”，“观测功率”，“追溯功率”和“先验功率”之类的标签，报告的功率数字应附有用于计算功率的值的规格说明和合理性，并以效果大小，置信区间和p值为特征来描述结果。

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