What statistical test do i use - mann whitney?

[lavster]

What statistical test do i use - mann whitney??

Homework Statement

"In a study, a sample of physical and developmental problems was randomly divided into two groups: treatment group and control group. The question of interest is whether the average change of PDI score from 6 to 24 months was different for children in the intervention programme to those in the control programme. The observations do not follow a normal distribution"

The Attempt at a Solution

Do i use a man whitney test here? baring in mind that its two independent groups but yet the differences are from two value which are not independent?

thanks

 

[nate808]

for the A2A! the statistical test you would use in this scenario would depend on the specific research question and the data that you have collected. The Mann-Whitney U test is a non-parametric test used to compare two independent groups, but it may not be the best choice for your study if your data does not follow a normal distribution.

One alternative test that you could consider is the Wilcoxon rank-sum test, which is also a non-parametric test for comparing two independent groups. This test may be more appropriate for your data if it does not follow a normal distribution.

However, before choosing a statistical test, it is important to carefully consider your research question and the data that you have collected. You may also want to consult with a statistician or conduct further research to determine the most appropriate test for your specific study.