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1. The problem statement, all variables and given/known data

"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"

3. 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

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# What statistical test do i use - mann whitney?

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