homogeneity

Hi, I am currently analyzing my data in SPSS. Since I am testing the effect of two independent variables on a dependent one, I was planning on using a two-way independent ANOVA. (I have a between subjects design). IVs: 1. Experimental condition (2 levels) 2. Personality grouping (3...

Hi, if in regression models homogeneity is violated, the variance can in principle depend on both: Predictor and outcome variable(s). In case of a dependency on categorical or continuous predictor variables, there are many ways to model different dependencies, e.g. using GLS models. In...

I have a data set with an amount of tests that were done by a group of people for each day over two weeks (no weekends). Basically, I need to know which day differs the most from others. Here is the data set: M T W TR F 48 43 42 40 50 47 49 42 46 51 38 44 47 53 52 41 46 47...

Hi, I'm running a hierarchical linear mixed effects model in R (subject is nested in dyad). My dependent variable is a continuous variable. When I run the model I do not meet the assumption of homogeneity. A log transformation on the dependent variable does not work. However, when I use a box...

Dear all, I'm somewhat new the world of statistics, or at least it has been years since I last used it and basically the only program I know generally how to work with is SPSS. However, for my Master thesis I need to analyse a dataset I made, so there's no escaping it now. My research is...

Hello i am hydrologe and i search to find a solution for the following problem: Suppose that i have k samples of observations (region) of the same variable ( e.g., annual peak flow) at different measuring sites are available (each sample i=1,..k have a record length ni). The homogeneity...