multiple datasets

  1. W

    Is this a case for Mixed Model Anova?

    HI, My study has 2 IV's each with two levels (2 hull designs and 2 techniques) = 4 conditions, and has 3 subjects. Max acceleration data was gathered for each subject over 5 trials on the same day.Hence I have 5 x 4 values for each subject. I would like to perform ANOVA on the results without...
  2. G

    separate a population into groups using 3 sets of data at once

    Hi there, I'm working on a population for which I have done 3 chemical analyses that give the concentration of different products in their tissues. The results seem to show that there's a segregation of my samples into 3 or maybe 4 groups. an example of the 3 main categories simplified...
  3. A

    Merging PISA waves in Stata

    I am running into trouble trying to merge multiple PISA waves into one Stata file for running some hierarchical models. So far, I have combined the student and school files, but do not know the best way for merging 2000 through 2012. The problem is further complicated by the fact that...
  4. R

    Comparing exp and control groups in a mixed design with a comparatively small N

    My study investigates the type of dialogue and behavior between children working in groups on a class activity, with and without an intervention. It is a small project with an experimental design, three experimental and three control participants (in this case each participant is a group of...
  5. J

    Merging with unique personids but not sorted as unique in datasets

    Hi Everyone- First, long time viewer of the forum but first time posting. Thank you so much for any advice, this site has helped get me back on track with several assignments in the past, and I really appreciate all of the comments and time spent by contributors. I am attempting to merge...