2x2

  1. P

    2x2 design: compare the increase within two treatments

    Hi, I am currently evaluating a 2x2 experimental design. Let's say the two independent variables are A and B with the manipulated levels (A1 vs. A2) and (B1 vs. B2). The dependent measure is performance (as a percentage score). I hypothesize that performance is higher in treatment A2 compared...
  2. S

    2x2 contigency table non-independent but not paired data

    I am looking at male-biased sexual size dimorphism in a bird species (males average larger than females). I am interested in the proportion of males larger than females in breeding pairs. I have one proportion result "A" from observed breeding pairs. I then did random bootstrap resampling...
  3. S

    Interpretation of a regression with only one independent variable: a 2x2 interaction.

    Hello all, This is my first post. I am a newly-begun career-researcher and while I have come here now for help, I intend to continue to use this forum and offer my assistance to others where I can in the future. Here is the issue I'm having right now. I am analyzing a study on Down...
  4. M

    CI and Odds-ratios calculation for 2x2 tables.

    Hi, I am currently trying to see if there is an association between a specific haplotype and and disease i two population. So far i have managed to do a Fisher´s exact test however i would also like to calculate the odds-ratio and see the CI if its possible. Using the command: tab rowvar...