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Topic:
The same four proportional weighting factors work for each 00/01/10/11 when 0.25 is subtracted from each !!!
Replies:
506
Last Post:
Nov 20, 2012 9:21 PM
The first table below expresses two scientifically reasonable results regarding our 3-way interactions for eS, uS, euSe, and euSu at specific length intervals as well as across all length-intervals.
I would take the time to explain the scientific meaning of these results, but unfortunately, the second table below shows that these results do not withstand a plausible Bonferroni correction.
I have an idea as to what may help improve this situation, and will implement it at the same time as I?m running the centroid analysis of (e,u,c)|L (assuming you teach me how to map e,c,u into [0.1].)
Basically, the idea is to define uL and uH more carefully, as follows. For each cell of the design, we can obviously calculate the mean of u and (mean+/-2SD). We use these follows to say that u is in uL if it is below mean-2SD and in uH if it is above mean+2SD. This definition of uL and uH will, I think, get rid of a lot of ?crap? in the middle that?s obscuring what?s really going on.
But again, please be assured that even though I am going to rerun the regression analysis with this new definition of uL and uH, I fully intend to run the centroid analysis of (e,u,c)|L. If the new regression analysis yields results that do withstand a Bonferroni correction, then they should line-up with what ever results are obtained from the centroid analysis.
Table I:
Extent to which Significant 3-way Interactions across Length Intervals are Exhibited at Specific Length Intervals (Data Not Shown for 2RS and 2RC)
3-way u Non-Random Coeff Len Int p Lev 2S 2C % Chg eS ALL .014 L 2.288 6.075 165.5% H 7.993 8.309 4.0%
1 .035 L 1.578 6.545 314.6% H 5.719 4.760 -16.8%
euSe ALL .005 L 2.402 6.154 156.2% H 8.265 7.975 -3.5%
1 .025 L 2.076 6.640 219.8% H 6.002 3.926 -34.6%
4 .011 L 1.250 7.881 530.3% H 10.755 7.658 -28.8%
uS ALL .0003 L 0.277 -0.082 -129.6% H 0.050 -0.848 -1796.0%
5 .040 L -0.287 -0.345 20.0% H 0.289 -0.325 -212.3%
9 .0002 L 0.548 -0.078 -114.2% H 0.436 -1.056 -342.4%
10 .011 L 0.563 -0.006 -101.0% H 0.261 -1.103 -522.9%
11 .032 L 0.617 -0.142 -123.1% H 0.354 -1.178 -432.9%
euSu ALL .036 L 0.240 -0.037 -115.4% H -0.190 -0.760 300.0%
9 .008 L 0.482 -0.067 -113.8% H 0.141 -0.829 -686.3%
11 .012 L 0.415 -0.083 -120.1% H 0.185 -1.253 -777.3%
