My study is on mice bone. I have conducted DXA scan and the values are continuous data. There are 4 treatment group with 1 negative control group and 1 vehicle control group. In total there are 6 groups of mice that were studied. I have the bone mineral density values of 6 groups of mice femurs.
I want to compare the BMD of all this groups. Apart from comparing the means, what statistical analysis can I use? Here is the example of my data
One way analysis of variance (fixed effects model) for comparing all means and selected individual comparisons.. However from your results and with more treatment groups than biological replicates ,it does not look as if you will find any statistically significant differences. With multiple comparison adjustments this would become even less likely.
You could also analyse components of variance using a random effects model. This would compare between group variance with within group variance.
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