在单向重复测量中何时使用Bootstrap-F ANOVA:I型错误和功率
María J Blanca1, Roser Bono2,3, Jaume Arnau3
1University of Malaga (Spain).
Psicothema
|June 23, 2025
概括
引导F (B-F) 为重复测量提供了传统ANOVA F统计的强大替代方案,即使采样大小超过20-25时,即使采用非正常和非球形数据,也可以.
科学领域:
- 统计 统计 统计 统计
- 生物统计学 生物统计学
- 心理测量 心理测量 心理测量
背景情况:
- 传统的重复测量ANOVA F-统计假设正常性和球性.
- 引导F (B-F) 是对违反这些假设的建议替代方案.
- 关于B-F在各种条件下的强度和功率的证据有限.
研究的目的:
- 在各种条件下评估Bootstrap-F (B-F) 的行为.
- 为了扩大对B-F在重复测量中的稳健性和力量的理解,ANOVA.
- 为使用B-F与假设违规提供指导.
主要方法:
- 进行了一项模拟研究.
- 操纵的关键变量包括重复测量的数量,样本大小,球状度 (epsilon值) 和分布形状.
- 在这些模拟条件下分析了B-F的性能.
主要成果:
- B-F可以是保守的,具有高的epsilon值.
- B-F可能是自由的,严重违反正常性和球形性,特别是小样本大小.
- 统计功率受球性影响;较低的epsilon需要更大的样本大小才能获得足够的功率.
结论:
- 引导F (B-F) 证明了对非正常性和非球状性的强度.
- B-F对于超过20-25的样本大小是可靠的.
- 当B-F是自由的时,可以考虑更严格的alpha级别 (例如,0.025).
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