# pre post test analysis

1. ### Non-parametric test with confounding factors (many covariates)

First, sorry for my English, if I'm not clear enough, tell me! In my project, I have many variables but a very small sample (non-parametric). I'm trying to prove a link between two variables while correcting for covariates. In short, we are looking at white matter tracts and their links to...
2. ### Non-Equivalent Group Statistical Analyses - is ANOVA appropriate?

Hi there, I have pre/post data on the same tool for two different populations (Group A: Higher needs, Group B: Lower needs) and two different services (Intensive counseling for group A, Brief counseling for group B). Other variables include age, gender and length of service. Would it be...
3. ### Which statistical analysis needs to be run ? ANOVA/Paired T-Tests

So i trying to figure out what analysis i need to use,but im a tad stuck. Im doing a pre and post test design. So a primary school with a programme , measured by the questionnaire before and after . Then there is a control group primary school without a programme , measured by a...
4. ### Pre- and post-test comparison, is there a minimum sample size (behaviour change treat

Hi I have to measure the efficacy of a group based treatment for the perpetrators of domestic violence. I started out trying to organise an rct, but it looks like all i will be able to do is a pre and post-test comparison given the difficulty in establishing a comparable control group. I...
5. ### Help in analysing pre/post stats in a repeated measures ANCOVA

Hi all, I am currently trying to work out if it is possible to run a repeated measures ANCOVA in SPSS where the two levels of a factor are each tied to a seperate covariate. To clarify I have a study with a 2x2 design of timing (pre/post) and valance (good/bad). In the study the...
6. ### Pre-Test/Post-Test With Multiple Tests Running

Very new to this statistics thing and could use some help deciding how to run the data for this. 60 participants (30 control/30 intervention). Each person is being given 5 different likert-scale assessments, oral cortisol swabs, blood pressure pre-test and post-test. I'm studying the effects of...
7. ### Pretest-posttest design at different institutions

I have data that consists of numerical scores ranging from 0-100 on a test, matched pre/post by student. (So for each student we have a pretest score and a posttest score.) All students were enrolled in a course that used a specific curriculum, but we have data from multiple schools with...
8. ### Pre and Post Test

Hi, I have done a small information session for 72 people and all of them has completed the pre and post questionnare. Pre and post questionnare has the same questions. I wanted to measure if the awareness of the attendiees has changed after the session. How should i record the collected data...