non-parametric tests

  1. K

    Unsure if I need to transform my data or use a p-value correction for multiple comps.

    Hello all, Right off the bat I'd like to say that I'm pretty new to statistics and am having to employ some for analysing the results of a listening test I conducted for my masters thesis (in Environmental Acoustics), so apologies if I struggle to explain myself clearly! Essentially, my...
  2. 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...
  3. M

    Distribution of averages in non-parametric stats??

    Hi, I am new to the forum and learning the stats I need as I go:) I have done some parametric stats in undergrad but never dealt with non-parametric stats before so I am hoping to get some direction and pick up some language to help me describe the problems better. Any assistance in both...
  4. F

    Kruskal-Wallis & Regression: unequal n, unequal sd & non-normal dep.var.

    Hello and thank you for reading this thread! My problem is as follows: I conducted a simple experiment to check for the effect of gender and gender pairing in the outcome of a game (the ultimatum game, I won't bother you with unnecessary details). Important for my question to you, is...
  5. S

    Trouble with Wilcoxon signed rank test - please help

    Firstly...I'm an absolute stats novice. I am assessing the urinary toxicity of a procedure by comparing baseline and 6 week International Prostate Symptom Scores (IPSS) for 10 patients. I am applying the wilcoxon signed rank test - however through all my "googling" there appears to be 2...
  6. T

    Testing affects of non-normal explanatory variables on response variable

    Hi all, I'm having real problems with analysing some data (I am using R), and wondered if anyone would please be able to offer me any advice. I have 1 continuous response variable (normally distributed), and I would like to look at the individual affect of each of my explanatory variables...
  7. A

    Univariate or Multivariate?

    Hi My data is on two equal groups of patients. The two groups have roughly equal proportions of males/females. A blood sample was obtained form each patient, and 10 of the blood components were measured either as a count, % of volume or a concentration. The objective is to see whether the...