事后检验
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事后检验 [2023/03/27 09:51] – 创建 wisture | 事后检验 [2024/04/06 09:20] (当前版本) – caomingsu | ||
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==== 事后检验(Post-hoc test) ==== | ==== 事后检验(Post-hoc test) ==== | ||
- | | + | |
- | * 要进行事后检验以说明各组差异在什么地方 | + | |
- | * 事后检验是比较每一个组和另一个处理组,一次比较两个,这称为成对比较 | + | - 要进行事后检验以说明各组差异在什么地方; |
+ | | ||
+ | - 事后检验是比较每一个组和另一个处理组,一次比较两个,这称为成对比较。 | ||
+ | * Post-hoc test compares each group to another treatment group, two at a time; this is called a pairwise comparison. | ||
---- | ---- | ||
=== 族系(familywise)误差 === | === 族系(familywise)误差 === | ||
- | | + | |
- | * 多次比较后犯I类错误的概率为{{:: | + | |
+ | - 多次比较后犯I类错误的概率(Probability of making a Type I error after multiple comparisons)为**α< | ||
+ | ---- | ||
+ | === Tukey' | ||
+ | - 此检验各组要有相同的样本容量; | ||
+ | * This test requires the same sample size for each group. | ||
+ | - 可以计算出单一的值确定处理均值间的最小差异,考查此差异在统计上是否显著; | ||
+ | * A single value can be calculated to determine the smallest difference between treatment means, to see if the difference is statistically significant. | ||
+ | - {{:: | ||
+ | - q可以查表得到。 | ||
+ | * q score can be obtained by looking up the table. | ||
---- | ---- | ||
- | === 标题 | + | === Scheffe检验 (Scheffe test) === |
- | + | - 适用于n不相等的情况; | |
+ | * Applies when n is not equal. | ||
+ | - 降低I类错误的风险,提高II类错误的风险。 | ||
+ | * Reduces the risk of Type I errors and increases the risk of Type II errors. |
事后检验.1679910683.txt.gz · 最后更改: 2023/03/27 09:51 由 wisture