mixed anova

  1. E

    Is it ok to run some planned comparisons and some post hoc?

    Hello - I am a phd student in psychology and I would be very grateful for some advice about contrasts. I have conducted a naming experiment for which response time was the outcome measure. There were 2 groups (treatment v control) and 3 testing conditions (A, B and C). I ran a mixed 2 x 3...
  2. Z

    Interpreting "Within-subjects contrasts" in Mixed ANOVA

    Greeting stats peers, After conducting a 2x2x(3) Mixed Model ANOVA, I am struggling to understand the SPSS output "Within subjects contrast" Specifically, - Factor B" (e.g., a sex-prime) exerted no main or interaction effect; - yet there was a significant AxBxC linear interaction in...
  3. C

    Mixed ANOVA in R with a nested sampling design

    Hi everyone, I would be really grateful if someone can help me with this since i am kind of new in R and not so used to multivariate statistics. I have a dataset of species data collected across 3 habitats and at 3 different scales. However scales 2 and 3 build on scale 1, this is the number...
  4. M

    Mixed ANOVA: p-Value of within factor increases by adding a between factor...?

    Hello, I thought I'm good in math and statistics but this one is giving me a real headache...hope one of the pros here can explain/solve it... I ran a mixed ANOVA with one within and one between factor, both variables have 2 outcomes - pretty easy. Accidentally when I first did it, I...
  5. S

    normalising data for a mixed anova

    Hi, I am running a 3x5 mixed factorial anova. I am testing the effects of 3 training groups over 5 time periods on the same questionnire. The groups means at test 1 vary a lot and I have been advised to normalise the data by using z scores. My question is do I then run the same mixed anova...
  6. M

    Which ANOVA to use? PLZ HELP :(

    Hi guys... Here's what my experiment's about... I am testing 24 subjects to see if different learning methods affect retention performance. I am using a control condition which they'll all do (own method) versus imposed condition which has two levels (multiple colour highlighting and...
  7. A

    Three-way mixed ANOVA - Post-hoc-analysis (Scheffé-test?)

    Hello everybody, I hope someone is able to help me here, because I'm desperate and can't find help anywhere :-(. English is not my first language, so please excuse any errors. For my final thesis, I conducted a 2x2x3 mixed ANOVA in SPSS, mixed meaning that the first factor was a...