Hi,

I am interested in assessing the relationship between number of GP visits (IV) and wellbeing (DV) measured over time for data collected in 2 separate centers. I have grouped data.

I am planning to standardised both the DV and IV to obtain standardised coefficient regressions which I will be able to compare; however, I am wondering if there is any way to formally test if they are statistically different between the two centers. Any suggestion?

Thanks,
Laura