paired comparisons

  1. R

    I have a large distribution of paired percentages. Is there a best way, or any way, to test for sig. different pairs?

    These percentages are based on RNA sequencing count data for which replicate values have been merged and transformed to these percentages (which represent average lengths, not counts). But since the replicate data has been lost in the transformation to %, I'm not sure if I can still test for...
  2. S

    Paired test?

    Hi, I have the following problem. In my experimental setup I have four tissue samples from the same animal in each experiment, two from one side and two from the other. The original plan is to apply a substance alone on a sample from one side and the substance mixed with the inhibitor on...
  3. T

    How to compare pre-post outcome when each subject react differently?

    I have 11 subjects with pre and post outcome (two repeated measures). I'd like to test the difference between both conditions. The problem is that each subject react very differently. Here's an example : Subjects Pre-score Post-score S646 1.52 8.18 S657 -1.43...
  4. E

    To report or not to report posthocs for a 'back up' test

    Short version - I have run some non-parametric tests (Friedman) as sort of backup to a ANOVA because of an assumption violation - should I report the pairwise comparisons for these tests in addition to planned comparisons I did following the ANOVA? TIA, E...
  5. G

    Inference from sample splits when coefficients are not significant (Panel Data)

    Hi, I’m new to this forum and have got a little stata problem. Status Quo: I use panel data and a fixed effects model. My independent variable is negative and statistically significant over the whole sample. To test a theory I split the sample in two halves (A+B). Theory predicts...
  6. G

    Making metabolite samples with different volumes comparable prior to paired T-test

    Hi, I have metabolite measurements from tumor patients comparing samples from the tumor tissue (3 replicates per patient) against nearby unaffacted control tissue (again, 3 replicates per patient). Since the tumor and control data for each patient is paired and the overall measurements are...
  7. S

    Can anyone help with paired comparions?

    This is a hypothetical question. I'd like to do some research with my local neighbourhood to find out where money should be spent in the future. I have five key issues: Removing litter; Removing dog mess; Planning flowers; Providing activities for young people; Providing activities for older...