intervention-analysis

  1. R

    Which test is appropriate for pre and post test (between and within subjects)?

    I have conducted a study where participants are split between two groups (treatment and control). I want to measure changes in depression and sleep disturbance pre and post-test (before and after intervention). I want to see interactions between-subjects for depression and sleep. I also want to...
  2. S

    Question on the merits of mediation analysis Vs another analysis (described within)

    Hello, I have a dataset involving an intervention (placebo versus real) - denoted as X, an outcome (Y), and a physiological variable (M) that I hypothesised would mediate the effect of X on Y. I have shown that X did not significantly affect Y (as assessed using simple linear regression), but...
  3. S

    which test for repeated measures within-between group change with small sample size?

    Hi all, I have an intervention study with a very small sample size and am trying to decide the best way to analyze it. Any suggestions would be extremely helpful. Here is some more information: Measurements on 5 different variables were taken at 3 time points: Baseline, Follow-up 1...
  4. M

    Intervention Analysis with several different events with Eviews

    I have a daily data of visitors and 3 different events ( exhibition, article, tv). I would like to determine how those events impact visitors flow. Several continue for some days and few have pretty short intervals between, 2-3-4. Graphically, events don't have longer impacts, they look more...