multiple comparisons

  1. N

    Can you compare 3 small groups <4 participants using Multiple Mann-Witney?

    Hi, I am very new to statistics but have found myself doing a small master desgree research project with very little statistics background so I am finding it very difficult. I have had a go at a mann-whitney but am just not confident that it is the correct test to use or whether there is...
  2. W

    Nested/Repeated Comparisons-What test should I use?

    Hi! I am having trouble to decide what statistical test to use on my data because I have one factor grouped within another. Here is my experimental design: I have two cell lines, one infected with a bacteria (I) and one uninfected (U). I have split each of theses cell lines into two groups...
  3. A

    Correctly rejecting a null hypothesis

    Hi all, came here for a bit of advice. Got a bit confused - I think its a fairly simple question. Goal I want to determine whether Sb (Antimony) accumulation is greater in one central area relative to two nearby suburban areas (pre-existing policy implies that is the case). H0: Sb...
  4. S

    Compare two variables : Ho = difference is 0

    Hello, This might be very trivial so please bear with me. A = [a1 a2 a3 a4] B = [b1 b2 b3 b4] Ho = [A-B]^2 = 0 i.e. A and B are the same. AND I also want to correct for False Discovery Rate (multiple comparisons) & report values (eg. [a3-b3]^2) that are significantly larger than 0...
  5. A

    Comparing two groups on multiple DVs

    Hi all! I'm hoping for some help with reviewer comments on a paper. I'm a grad student in behavioural neuroscience, with some stats courses under my belt but nothing very helpful! The issue is this: I have two groups (high and low on a measure), and I am comparing them on 12 different...