r*******a
发帖数: 6 | 1 看了一些repeated measures ANOVA的资料，这个方法通常用在对一组病人在不同时间
点（如服药前后）所测得的指标的分析。但如果实验仅仅只是通过几种方法去测一组病
人的血压（无药物因素，无时间因素，即病人血压固定不变，且已知每个病人血压的真
实值，只关心哪种方法测得的值更精确），假设有3种方法，每个病人均被测3次，每次
使用1种方法。这样的实验设计算不算repeated measures? 这样得到的数据可否使用
repeated measures ANOVA ? |
d***2
发帖数: 341 | 2 So this is a 3X3 crossover design, there is actually no repeat within each
method....
【在 r*******a 的大作中提到】
: 看了一些repeated measures ANOVA的资料，这个方法通常用在对一组病人在不同时间
: 点（如服药前后）所测得的指标的分析。但如果实验仅仅只是通过几种方法去测一组病
: 人的血压（无药物因素，无时间因素，即病人血压固定不变，且已知每个病人血压的真
: 实值，只关心哪种方法测得的值更精确），假设有3种方法，每个病人均被测3次，每次
: 使用1种方法。这样的实验设计算不算repeated measures? 这样得到的数据可否使用
: repeated measures ANOVA ?
|
r*******a
发帖数: 6 | 3 thanks for reply.
which method should be used for analyse this type of data? |
m*****y
发帖数: 229 | |
A*******s
发帖数: 3942 | 5 虽然俺的DOE都还给老师了，不过还记得这算cross over design吧--each subject
receiving a sequence of experimental treatments. 算repeated measure的一种。 |
w*******9
发帖数: 1433 | 6 interesting question! Usually we only test whether the treatment mean or the
variance are the same. But here we need to compare different devices which
necessarily involves both bias (kind of mean) and variance. Consider the
simple case where there are two univariate data sets, with the first one
being N(a1,s1) and the second one N(a2,s2). How do we test a1^2+s1=a2^2+s2? |
c**d
发帖数: 104 | 7 Statistical Analysis of Method Comparison Studies
Measurement in Medicine: the Analysis of Method Comparison |
d***2
发帖数: 341 | 8 Can't do much typing on tablet, take a look of the link below to see if it
helps:
http://www.stattools.net/COver_Exp.php
【在 r*******a 的大作中提到】
: thanks for reply.
: which method should be used for analyse this type of data?
|
r*******a
发帖数: 6 | 9 so repeated measures ANOVA is applicable for this analysis ?
【在 A*******s 的大作中提到】
: 虽然俺的DOE都还给老师了，不过还记得这算cross over design吧--each subject
: receiving a sequence of experimental treatments. 算repeated measure的一种。
|
r*******a
发帖数: 6 | 10 Bland-Artman plot.
Yes, it has been frequently used in compariosn the agreement between Methods
, while I feel it is more like a qualitative analysis rather than
quantitaive, as the conclusion were made based on visual inspection of this
plot (in most cases).
【在 c**d 的大作中提到】
: Statistical Analysis of Method Comparison Studies
: Measurement in Medicine: the Analysis of Method Comparison
|
r*******a
发帖数: 6 | 11 Thanks for the link.
【在 d***2 的大作中提到】
: Can't do much typing on tablet, take a look of the link below to see if it
: helps:
: http://www.stattools.net/COver_Exp.php
|
