In order to detect the validation of a prediction model that I will develop, I plan to split the samples I have into two. I will use one for model develop and the other for model validation. I need to identify it belongs to which type of validation.
To investigate the impact of an intervention program implemented in Community A, I obtained another community with similar size and demographic characteristics but without the intervention as comparison. It is called as:
Quasi-experimental design or Randomized control trial