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    Testing two independent variables (categorical and interval) and interactive effects on continuous data?

    Hi, I'm not sure if there is an actual statistical test for this, but I want to see how Side (Left or Right, categorical) and Depth (Interval, fixed at every 250, but I don't have data for all depths) affect a continuous parameter I have. I initially tried a multiple linear regression, I am...
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    Best statistical test to encompass all my data for my research?

    Hi all, I've been battling for months to work out which statistical test is the best way to make the most out of the data I have. I have been measuring depth related changes in a material. At depths of 2mm (0-2mm, 2mm-4mm etc) for 10 slices I have measured several quantitative parameters. I...